150+ Murder Mystery Riddles with Answers
Murder mystery riddles are a thrilling way to challenge your mind, improve problem-solving skills, and have fun.
Whether you’re a fan of detective stories or just enjoy brain teasers, these riddles will test your ability to think logically and solve crimes like a true investigator.
Below, you’ll find a collection of unique, catchy, and human-written murder mystery riddles along with their answers. Get ready to put on your detective hat!
🔍 Classic Murder Mystery Riddles
1. The Locked Room Murder
A man is found dead in a locked room with no windows. The only way in is through a locked door, but there are no signs of forced entry. How did the murderer escape?
Answer: The murderer was inside and walked out when someone unlocked the door to check on the victim.
2. The Poisoned Coffee
A woman ordered coffee at a café. She drank half and left. Later, she was found poisoned, but the café’s coffee was tested and safe. How was she poisoned?
Answer: The poison was in the ice cubes. They melted while she drank.
3. The Two Pills
A man is given two pills—one safe, one deadly. He takes one, and the doctor takes the other. The doctor dies, but the man survives. How?
Answer: Both pills were safe. The poison was in the glass of water given to the doctor.
4. The Stabbed in the Elevator
A man enters an elevator alone. The doors open on the next floor, and he is found stabbed to death, yet no weapon or attacker is found. How?
Answer: He was stabbed before entering the elevator and collapsed when it stopped.
🔎 Detective Challenge Riddles
5. The Missing Bullet
A man is shot in a closed room, but no bullet is found. The gun is still there. How?
Answer: The bullet was made of ice and melted.
6. The Deadly Letter
A woman reads a letter and drops dead. The letter had no poison. What killed her?
Answer: The letter contained news so shocking it gave her a heart attack.
7. The Hotel Murder
A man checks into a hotel and is later found dead in his locked room. No one saw anyone enter or leave. How was he killed?
Answer: The killer was the hotel worker who had a master key.
8. The Poisonous Perfume
A woman dies after spraying perfume. How was she murdered?
Answer: The perfume bottle contained poisonous gas.
🕵️‍♂️ Tricky Murder Mystery Riddles
9. The Perfect Alibi
A man is murdered at exactly 3 PM. The suspect was seen on a live TV show at 3 PM. How could they have done it?
Answer: The show was pre-recorded.
10. The Burning Match
A detective finds a matchstick near a body. What does it tell him?
Answer: The victim lit a match to see in the dark before they were attacked.
11. The Murder in the Rain
A woman is shot during a rainstorm, but no wet footprints are found. How?
Answer: The killer used an umbrella to avoid leaving prints.
12. The Death Note
A man leaves a note before dying. It says, “I’m 37.” How does this help solve the case?
Answer: The number 37 was the suspect’s apartment number.
🧩 More Murder Mystery Riddles
13. The Deadly Game
A man is found dead with a chessboard in front of him. What happened?
Answer: The killer left a clue on the chessboard, spelling the victim’s name with the fallen pieces.
14. The Twin Trick
Two identical twins are found murdered in separate locations, but both have the same last words. What happened?
Answer: One twin saw the killer, and the other was on a call and heard it happen.
15. The Ice Knife
A woman is stabbed, but no weapon is found. How?
Answer: The knife was made of ice and melted.
16. The Coded Message
A detective finds a coded note near a victim. It reads “MOTEL”. What does it mean?
Answer: “MOTEL” is an anagram for “MELT”, meaning the murder weapon was ice.
🔥 Clever Murder Mystery Riddles
17. The Last Call
A man is found dead with his phone in his hand. His last call was to 911, but he didn’t say anything. How was he murdered?
Answer: The murderer forced him to dial 911, then killed him before he could speak.
18. The Mysterious Shadow
A detective sees two shadows under a door, but when he enters, only one person is inside. What happened?
Answer: The second shadow belonged to the killer, who escaped through a hidden passage.
19. The Deadly Countdown
A man receives a note with numbers: 5, 4, 3, 2, 1. He dies the next day. What does it mean?
Answer: The numbers represent a countdown to his murder.
20. The Deadly Book
A librarian is found dead at her desk, with an open book in front of her. How was she killed?
Answer: The book pages were laced with poison, and she licked her finger to turn the pages.
🕵️‍♀️ Unsolved Murder Mystery Riddles
21. The Empty Safe
A rich man is murdered. His safe is open and empty, but there are no signs of a break-in. What happened?
Answer: The killer was someone he trusted, who knew the safe’s combination.
22. The Vanishing Knife
A woman is stabbed in the middle of a party, but no weapon is found. How?
Answer: The knife was thrown into the fireplace, where it burned.
23. The Wrong Date
A detective finds a calendar marked with an “X” on the wrong date. What does it mean?
Answer: The victim knew they would be murdered, but wrote the wrong date to mislead the killer.
24. The Elevator Code
A businessman is found dead in an elevator. The only clue is a piece of paper with numbers: 4, 3, 2, 1. What does it mean?
Answer: The numbers show the elevator floors the murderer stopped at while escaping.
⚠️ Impossible Murder Mystery Riddles
25. The Man Who Knew Too Much
A man tells police he witnessed a murder at midnight, but he’s arrested. Why?
Answer: The police never mentioned the time of death, meaning he was the killer.
26. The Empty Glass
A bartender serves a drink to a man, who dies instantly. But the drink is safe. What happened?
Answer: The glass was poisoned, not the drink.
27. The Murderous Reflection
A woman claims she was alone at home during a murder. But the detective sees a reflection in her mirror. What does it prove?
Answer: The killer was still inside, hiding behind her.
28. The Deadly Sneeze
A man sneezes and dies in a room with no poison or weapons. How?
Answer: He was allergic to something the killer secretly placed in the room.
🕵️‍♂️ Quick Murder Mystery Riddles
29. The Missing Shoe
A detective finds a dead body with one shoe missing. What does it mean?
Answer: The shoe was used to smuggle evidence out of the crime scene.
30. The Wrong Hand
A man is found shot, and the gun is in his right hand, but he was left-handed. What does it mean?
Answer: The scene was staged to look like suicide, but it was murder.
31. The Poisoned Apple
A woman dies after eating an apple, but her friend who ate from the same apple is fine. How?
Answer: The poison was only on one side of the apple.
32. The Blood Stains
A man is murdered, and his shirt has blood stains on the inside. What does it mean?
Answer: The shirt was put on after he was killed, meaning the killer changed his clothes.
🏚️ Creepy Murder Mystery Riddles
33. The Haunted Room
People who stay in a certain hotel room keep dying. There’s no sign of forced entry. How?
Answer: The room had a hidden gas leak, killing guests in their sleep.
34. The Final Message
A detective finds a victim’s final text, saying “it was them”, but there were three people in the house. Who is the killer?
Answer: The victim didn’t type a name because they were killed mid-message.
35. The Deadly Candle
A woman lights a candle, then drops dead minutes later. What happened?
Answer: The candle was coated in a deadly chemical that released toxic fumes.
36. The Music Box Clue
A detective finds a music box playing by itself in a locked room. What does it mean?
Answer: The killer set the box to play as a distraction before escaping.
đź’ˇ Smart Murder Mystery Riddles
37. The Framed Husband
A woman dies, and her husband finds a note saying, “It was me, darling.” But the handwriting isn’t hers. What happened?
Answer: The killer forged the note to frame the husband.
38. The Vanishing Footsteps
A man is murdered in the snow, but there are no footprints. How?
Answer: The killer used a sled or jumped from a height.
39. The Fake Witness
A witness describes the murderer in great detail, but they’re lying. How does the detective know?
Answer: The room was pitch dark, meaning they couldn’t have seen anything.
40. The Last Photo
A man takes a selfie and is later found dead. The photo shows him alone, but there are two shadows. What does it mean?
Answer: The killer was behind him, just out of frame.
🕵️‍♂️ Advanced Murder Mystery Riddles (41-80)
41. The Silent Alarm
A man is murdered in a jewelry store, but the silent alarm never goes off. How?
Answer: The killer was the store owner, who disabled the alarm before committing the crime.
42. The Chocolate Mystery
Two people eat the same box of chocolates, but only one dies. How?
Answer: The poison was in a chocolate with a nut, and the survivor was allergic, so they avoided it.
43. The Camera Clue
A detective finds a security camera with no recording of the murder. What does it mean?
Answer: The killer knew the camera’s blind spot and committed the crime there.
44. The Wrong Name
A woman is found dead with a name written in blood, but it’s spelled wrong. Why?
Answer: The victim tried to write the name, but ran out of strength before finishing.
45. The Murder on Live TV
A man is seen alive on a live TV show, but an hour later, he’s found dead. How?
Answer: The show was pre-recorded, and he was already dead when it aired.
46. The Wrong Time
A woman is found dead at 6 AM, but her watch says 9 PM. What does it mean?
Answer: The killer moved the clock to create a false timeline.
47. The Stolen Shoes
A victim is found barefoot in winter, yet their shoes aren’t at the scene. Why?
Answer: The killer took the shoes to hide footprints in the snow.
48. The Message in the Mirror
A detective finds a message written in the mirror. What does it reveal?
Answer: The message was written with a finger on a foggy mirror, meaning the killer was in the room after a shower.
49. The Missing Fingerprint
A knife is found at the crime scene, but it has no fingerprints. What does it mean?
Answer: The killer wore gloves or wiped the knife clean.
50. The Murderous Delivery
A man is found dead at his doorstep, but there are no signs of forced entry. How?
Answer: The killer posed as a delivery person and got the victim to open the door.
🔎 Hard Murder Mystery Riddles (51-80)
51. The Murderous Party
At a party, a woman is poisoned, but everyone ate and drank the same things. How?
Answer: The killer poisoned her drink before refilling it, so she got a different batch than the others.
52. The Last Wish
A man is found dead, holding a half-eaten sandwich. What does it mean?
Answer: The poison was in the second half of the sandwich.
53. The Wrong Answer
A suspect answers a detective’s question, but the detective knows they are lying. Why?
Answer: The detective never asked a question—the suspect confessed too early.
54. The Vanishing Victim
A person sees a murder happen, but when they return with the police, the body is gone. How?
Answer: The killer hid the body in a large suitcase and took it with them.
55. The Whispered Confession
A dying victim whispers a name, but the detective knows it’s false. How?
Answer: The victim was forced to lie under threat before they died.
56. The Blackout Murder
A murder happens during a power outage, but one witness describes the killer. How?
Answer: The killer used a flashlight, exposing themselves.
57. The Open Window Clue
A detective sees an open window at a crime scene, but it’s not broken. What does it mean?
Answer: The killer escaped through the window, but forgot to close it.
58. The Mysterious Footprints
A murder happens in a deserted area, but there are footprints leading to the body—none leaving. Why?
Answer: The killer walked backward in their own footprints to avoid detection.
59. The Fake Identity
A suspect has an airtight alibi, but the detective knows they did it. How?
Answer: The suspect used a fake identity, so the alibi was for a different person.
60. The Deadly Letter
A man receives a letter, reads it, and drops dead. Why?
Answer: The letter contained a slow-acting poison that absorbed through his fingers.
61. The Deadly Mirror
A woman is killed in front of a mirror, but no one saw the killer. Why?
Answer: The mirror was two-way glass, and the killer was behind it.
62. The Killer’s Reflection
A man takes a photo before he’s murdered, but there’s no one else in the room. What’s wrong?
Answer: The killer’s reflection is in the victim’s eyes in the photo.
63. The Blood Trail
A detective follows a blood trail, but it suddenly stops. Why?
Answer: The killer wrapped the wound to stop the bleeding while escaping.
64. The Missing Murder Weapon
A woman is stabbed, but the knife is never found. How?
Answer: The killer threw it into a lake to get rid of the evidence.
65. The Suspicious Note
A man leaves a note saying “I didn’t do it”, but the detective knows it’s fake. Why?
Answer: The handwriting was different from his normal writing.
66. The Reverse Alibi
A man claims he was at home, but the detective proves otherwise. How?
Answer: His phone’s GPS showed he was somewhere else.
67. The Final Knock
A person hears a knock at the door, then drops dead. What happened?
Answer: The knock was a signal for the killer to shoot through the window.
68. The Vanishing Bloodstain
A murder scene has a bloodstain, but when the detective returns, it’s gone. How?
Answer: The killer cleaned it up and repainted the wall.
69. The Empty Gun
A man is shot, but the only gun at the scene is empty. What happened?
Answer: The killer used a second gun and took it with them.
70. The Poisoned Air
A woman is found dead, but there are no wounds or poison. How?
Answer: The killer used a toxic gas that evaporated before the police arrived.
🕵️‍♂️ Expert-Level Murder Mystery Riddles (81-120)
81. The Coded Message
A detective finds a notebook with random numbers next to a dead man. What does it mean?
Answer: The victim was leaving a coded message to identify the killer, using a cipher.
82. The Wrong Coffee
A man dies after drinking coffee, but everyone else is fine. How?
Answer: His cup was poisoned, but no one else’s was.
83. The Murdered Chef
A chef is killed in his restaurant, but the food is untouched. Why?
Answer: The killer wasn’t a customer—they worked there.
84. The Locked Room
A person is found dead in a locked room with no way in or out. How?
Answer: The killer left through a hidden passage or set a trap before leaving.
85. The Killer’s Shoes
A suspect claims they weren’t at the scene, but the detective knows they are lying. How?
Answer: The mud on their shoes matches the crime scene.
86. The Last Selfie
A victim is found holding a phone with a selfie, but there’s something strange. What is it?
Answer: The killer’s reflection is in the background.
87. The Wrong Suitcase
A suspect returns from a trip, but the detective knows they are guilty. How?
Answer: Their suitcase is empty, suggesting they ditched evidence.
88. The Poisonous Letter
A man opens a letter and dies instantly. Why?
Answer: The envelope was lined with a lethal toxin.
89. The Hidden Recording
A detective finds a tape recorder at a crime scene, but there’s no sound. What happened?
Answer: The killer erased the tape, but the detective can recover it.
90. The Misplaced Wallet
A suspect says they never met the victim, but their wallet is found at the crime scene. Why?
Answer: They dropped it during the murder.
91. The Trapped Killer
A killer thinks they’ve gotten away, but the detective traps them with a trick. What is it?
Answer: They ask about a fake clue, and the killer reacts suspiciously.
92. The Dripping Clock
A detective notices water dripping from a clock at a crime scene. What does it mean?
Answer: The killer tried to wash off blood but didn’t dry the clock properly.
93. The Murder in the Fog
A witness sees a murder, but the fog was too thick. How?
Answer: The killer used a flashlight, revealing themselves.
94. The Staged Robbery
A store owner is killed in a robbery, but the detective knows it was staged. Why?
Answer: The cash wasn’t taken, only personal items.
95. The Victim’s Shadow
A person is killed at sunset, but the shadow is pointing in the wrong direction. What does it mean?
Answer: The photo was taken earlier, and the body was moved.
96. The Deadly Farewell
A woman receives a goodbye text before being found dead. What’s strange?
Answer: The phone was broken before the message was sent.
97. The Unopened Package
A victim is found dead next to a package they never opened. What’s inside?
Answer: The murder weapon, sent by the killer.
98. The Cold Room
A detective enters a freezing crime scene and notices one warm spot. Why?
Answer: That’s where the killer was standing, leaving a heat imprint.
99. The Out-of-Place Item
A victim is found with a fresh flower in their pocket. Why is it suspicious?
Answer: The flower only grows in the killer’s garden.
100. The Broken Pencil
A detective finds a broken pencil at the crime scene. What’s the clue?
Answer: The victim tried to write the killer’s name but was stopped.
🔥 Ultimate Murder Mystery Riddles (121-157)
121. The Dinner Party Poisoning
At a dinner party, a guest dies suddenly, but no one else is affected. How?
Answer: The killer poisoned the victim’s plate before serving it.
122. The Vanished Blood
A carpet is clean, but under UV light, blood stains appear. Why?
Answer: The killer tried to clean the crime scene, but UV light exposes hidden blood.
123. The Wrong Color
A victim is found wearing clothes that don’t match their usual style. What does it mean?
Answer: The killer changed their clothes to avoid bloodstains being noticed.
124. The Fake Escape
A suspect pretends to be kidnapped, but the detective knows they’re lying. How?
Answer: Their ropes are tied in a way they could have done themselves.
125. The Murderer’s Reflection
A security camera shows no intruder, but the victim is murdered. How?
Answer: The killer was hiding in the room the whole time.
126. The Mysterious Knock
A person hears a knock, but when they open the door, they’re shot instantly. Why?
Answer: The killer was hiding nearby, using the knock as a distraction.
127. The Wrong Drink
Two people drink from the same bottle, but only one dies. Why?
Answer: The poison was in the ice, which melted only in one drink.
128. The Moving Shadow
A detective notices a shadow moving in an empty room. What does it mean?
Answer: The killer was behind the curtains.
129. The Final Text
A victim’s last text says “It’s him”, but there’s no suspect named him. What does it mean?
Answer: The victim tried to write the killer’s name but died mid-message.
130. The Empty Suitcase
A killer packs a suitcase but leaves it behind. Why?
Answer: It was meant to make the police think they fled the country.
131. The Mysterious Coincidence
Two strangers are killed at the same time but miles apart. How?
Answer: The killer used a remote-controlled trap.
132. The Witness Who Lied
A witness describes the killer’s face, but the detective knows they’re lying. Why?
Answer: The room was pitch black, so they couldn’t have seen anything.
133. The Staged Death
A victim is found hanging, but the detective knows it wasn’t suicide. How?
Answer: There’s no chair nearby, so they couldn’t have climbed up.
134. The Last Cup
A killer leaves only one fingerprint at the crime scene. Where?
Answer: On the bottom of a coffee cup they handed the victim.
135. The Murderous Time Zone
A person is killed at midnight, but their watch says 3 AM. Why?
Answer: They were murdered while traveling between time zones.
136. The Unfinished Drawing
A detective finds a half-finished drawing. Why is it a clue?
Answer: The victim was trying to sketch the killer’s face.
137. The Fake Emergency
A suspect calls 911, but the detective knows they’re the killer. Why?
Answer: They called too soon, before the crime was discovered.
138. The Hidden Diary
A detective finds a hidden diary, but the last page is missing. Why?
Answer: The killer ripped it out because it named them.
139. The Deadly Password
A victim writes a password before dying. Why?
Answer: It’s a clue that unlocks evidence against the killer.
🔥 More Twisted Murder Mystery Riddles (141-157)
141. The Murderous GPS
A victim’s phone shows their last location, but the detective knows it’s a lie. Why?
Answer: The killer planted the phone somewhere else to mislead the police.
142. The Silent Alarm
A store alarm didn’t go off, even though a robbery happened. Why?
Answer: The killer disabled it beforehand, showing inside knowledge.
143. The Missing Eyeglasses
A man is found dead, but his glasses are missing. What does it mean?
Answer: He couldn’t have read the note left at the scene, meaning someone else wrote it.
144. The Empty Fridge
A detective notices the fridge is empty at a murder scene. What does it reveal?
Answer: The killer took all food to hide that poison was used.
145. The Wrong Handwriting
A suicide note is found, but the detective knows it’s fake. How?
Answer: The handwriting doesn’t match the victim’s.
146. The Stopped Clock
A victim’s watch stopped at a certain time. What does it reveal?
Answer: It broke during the struggle, marking the time of death.
147. The Mismatched Shoes
A suspect’s shoes are wet, but it hasn’t rained. What does it mean?
Answer: They were at the crime scene near water.
148. The Murderer’s Selfie
A detective finds a selfie on a suspect’s phone, but something’s off. What?
Answer: The victim is visible in the background, taken before the murder.
149. The Poisoned Toothpaste
A man dies in the morning, but no one saw anything suspicious. How?
Answer: The poison was in his toothpaste.
150. The Missing Bullet
A gun is found, but no bullet is at the scene. What happened?
Answer: The killer took the bullet to hide the caliber.
151. The Killer’s Allergy
A suspect claims they never touched the victim, but their hands are swollen. Why?
Answer: They’re allergic to something the victim wore, proving contact.
152. The Fake Paramedic
A paramedic arrives too quickly at the scene. Why is it suspicious?
Answer: They’re actually the killer, pretending to be a rescuer.
153. The Last Call
A victim’s phone shows a call to 911, but no one spoke. Why?
Answer: They tried to call but were attacked before saying anything.
154. The Murder in the Snow
A man is found dead in the snow, but there are no footprints. How?
Answer: The killer used a sled or drone to avoid leaving tracks.
155. The Wrong Fire
A house fire destroys evidence, but the detective sees a flaw. What?
Answer: The fire was set after the murder, not before.
156. The Suspect’s Shadow
A suspect claims they were inside all night, but the detective proves otherwise. How?
Answer: A neighbor saw their shadow outside.
157. The Missing Ticket
A victim was supposed to take a flight, but never boarded. Why?
Answer: The killer made sure they never got on the plane.
Conclusion
Murder mystery riddles are a fantastic way to challenge your mind and sharpen your detective instincts. Whether you’re solving a classic whodunit or a tricky puzzle, these riddles will keep you entertained for hours. Try them with friends, or challenge yourself to see how many you can solve without looking at the answers!
