A millionaire was found dead on a Sunday morning. The Maid claimed she was collecting mail. Who is the killer and why?

The Maid. There is no mail delivery on Sundays.

Zoya drank 5 iced teas quickly, while Aalia drank slowly. Aalia died from poison in the drinks. How did Zoya survive?

The poison was in the ice. Zoya drank before the ice melted.

A man was found dead with a gun in his right hand, but the items on the table indicated he was left-handed. How did Mehul know it was murder?

The victim was left-handed, but the gun was staged in his right hand.

The dying chemist left numbers 28-27-57-16. Based on the periodic table, who is the killer?

Nicolas. The numbers represent Ni-Co-La-S.

A man recorded a suicide message ending with a gunshot, but the tape was rewound. Why did Mehul consider it murder?

The dead man could not rewind the tape. Someone else did it.

A robbery occurred on a rainy day. Three suspects were found, but Suspect A was completely dry. Who is the thief?

Suspect A. He was too dry to have walked in the rain—he came from inside the store.

A dying man circled the numbers 7, 4, 9, 10, 11. These numbers reveal the killer's name. Who is it?

Jason. The months July, April, September, October, November spell J-A-S-O-N.

A husband returned alone from honeymoon. Mehul arrested him after speaking with the travel agent. Why?

He bought a return ticket only for himself, and a one-way ticket for his wife.

Who was the killer in the Sunday Alibi riddle?

The Maid was the killer. She claimed she was collecting the mail, but there is no mail delivery on Sundays.

How did Detective Mehul know the left-handed suicide was actually a murder?

The victim was left-handed, yet the gun was placed in his right hand. This mismatch revealed that the scene was staged.

Who stole the ring in the Japanese Ship riddle?

The Seaman stole the ring. He claimed he was correcting the Japanese flag, but the flag looks identical even if turned upside down.

How did the chemist identify his killer using the numbers 28, 27, 57, 16?

The numbers correspond to periodic table symbols: Ni, Co, La, S — forming the name 'Nicolas,' revealing the killer.

Why was the Cassette Tape riddle not a real suicide?

The tape had been rewound. If the man had truly killed himself while recording, the tape would have stopped at the end of the message. Someone else must have rewound it.

Why was Suspect A the robber in the Rainy Day riddle?

Suspect A's raincoat was completely dry despite the heavy rain. This means he was not outside but came from inside the robbed store.

How did the Calendar Code reveal Jason as the killer?

The circled numbers (7, 4, 9, 10, 11) represent the first letters of the months July (J), April (A), September (S), October (O), and November (N), spelling 'JASON.'

Who killed the man in the Lonely Hut riddle?

The Newspaper Boy. He stopped delivering papers on Tuesday and Wednesday because he already knew the man was dead.

Why was the husband arrested in the Honey-Moon riddle?

The travel agent revealed that the husband had purchased a return ticket for himself but only a one-way ticket for his wife — indicating pre-planned murder.

10+ Murder Mystery Riddles: Can You Find the Killer?

Q: How did Zoya survive the Frozen Iced Tea poisoning?

The poison was inside the ice cubes. Zoya drank quickly before the ice melted. Aalia drank slowly, allowing the poisoned ice to melt into her drink.

Author : Anshul Khandelwal | Date : 2025-12-09

Do you love detective stories? Do you think you are smart enough to catch a criminal? You are in the right place! We have collected the best murder mystery riddles from the world of Detective Mehul. These are not just boring text questions—they are visual puzzles. You need to use your eyes and your brain to solve them.

01. The Sunday Alibi

The Story:

A millionaire was found dead in his mansion on a Sunday morning. Detective Mehul questioned the staff:

The Gardener: "I was trimming the bushes."
The Maid: "I was collecting the mail from the postbox."
The Cook: "I was preparing lunch."

Who is the killer and why?

Case Closed:

The Maid. It was Sunday — there is no mail delivery on Sundays.

02. The Frozen Iced Tea

The Story:

Aalia and Zoya ordered iced tea on a hot day. Zoya drank 5 glasses quickly; Aalia drank 1 slowly. Aalia died, Zoya survived.

How did Zoya survive?

Case Closed:

The poison was in the ice. Zoya drank quickly before the ice melted; Aalia drank slowly and consumed the poison.

03. The Left-Handed "Suicide"

The Story:

A man was found dead with a gun in his right hand and a suicide note on the table. Mehul instantly knew it was murder.

How did Mehul know?

Case Closed:

The victim was left-handed. The gun was placed in the right hand — staged by the killer.

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04. The Japanese Ship

The Story:

A diamond ring went missing. Crew said:

Cook: "I was preparing sushi."
Engineer: "I was fixing the generator."
Seaman: "I was correcting the flag — it was upside down."

Who stole the ring?

Case Closed:

The Seaman. The Japanese flag looks the same upside down — he lied.

05. The Numbers in Blood

The Story:

A chemist left a dying clue: 28 - 27 - 57 - 16. Suspects: Felice, Nicolas, Amer.

Who is the killer?

Case Closed:

28 = Ni, 27 = Co, 57 = La, 16 = S → Ni-Co-La-S. The killer is Nicolas.

06. The Cassette Tape

The Story:

A man recorded a suicide message ending with a gunshot. But Mehul said it was murder.

Why was it murder?

Case Closed:

The tape was rewound. A dead man cannot rewind the tape.

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07. The Rainy Day

The Story:

A robbery happened on a rainy day. Three suspects were nearby:

Suspect A: Dry raincoat.
Suspect B: Wet umbrella.
Suspect C: Soaking wet.

Who is the thief?

Case Closed:

Suspect A — he was completely dry. Impossible in the rain unless he came from inside the store.

08. The Calendar Code

The Story:

A dying man circled the numbers 7, 4, 9, 10, 11. Suspects: Fred, John, Jason, Sophie.

Who is the killer?

Case Closed:

The months: 7 = July (J), 4 = April (A), 9 = September (S), 10 = October (O), 11 = November (N). Spells JASON.

09. The Lonely Hut

The Story:

A man lived alone. A postman found him dead. Outside were warm milk bottles and Monday’s newspaper — but Tuesday and Wednesday's were missing.

Who is the killer?

Case Closed:

The Newspaper Boy. He stopped delivery because he already knew the man was dead.

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10. The Honey-Moon

The Story:

A couple went on honeymoon. The husband returned alone claiming the wife died in a skiing accident. Mehul called the travel agent.

What did the agent reveal?

Case Closed:

He bought a return ticket for himself, but a one-way ticket for his wife.

Did you solve them all? If you got 10/10, you are a genius detective! If you missed a few, don't worry—even Detective Mehul needs help sometimes. Want more fun? Check out our Detective Mehul YouTube Channel for more cartoons and mysteries. Share this page with your best friend and see if they can beat your score!