Mind Skill Games mascot
Mind Skill Games — Sharpen Your Mind, One Game at a Time
Detective riddle

A famous novelist was poisoned at a dinner party. Four guests drank the same spiced punch. Guest A added extra sugar. Guest B added lemon slices. Guest C added crushed ice. Guest D drank it plain. Everyone fell ill except one person. The detective realized the poison was in the ice cubes, yet Guest C survived. How?

About this riddle

Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.

Difficulty: Hard. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.

More detective riddles

Detective Holmes inspected a ransom note cut out from yesterday's newspaper. The kidnapper demanded one million dollars. Holmes immediately knew the ransom note was fake because the newspaper date printed at the top of the clipping was a Sunday edition, but yesterday was a Wednesday. Who sent the note?

During a summer heatwave, a jeweler was found unconscious behind his counter. The front door was locked from the inside, and the air conditioning was blasting ice-cold air. On the floor lay a pool of melted ice water near a shattered lightbulb. The detective smiled and said, 'An inside job.' What gave the thief away?

An emerald ring vanished from a high-security vault. Three suspects had access that morning: the cleaner, the technician, and the accountant. Each of them had wet shoes because of a sudden thunderstorm outside. The cleaner said she was mopping the lobby. The technician said he was fixing the server room floor. The accountant said he was working at his dry desk. Detective Fox arrested the accountant. Why?

Detective Vance entered a dark apartment where a victim sat in an armchair, shot in the chest. On the coffee table lay a portable stereo plugged into a wall outlet, playing a cassette tape. The tape was near the end of side A. Vance pressed rewind, listened to the recording, and immediately identified the killer's voice. What crucial detail did the audio contain?

An antique pocket watch was reported stolen from a locked study. The owner insisted the room was sealed from the inside and nobody could have entered. Detective Reed walked in, looked at the grandfather clock ticking in the corner, and found the watch hidden inside the pendulum housing. 'It was an inside job,' Reed declared, 'done by someone who never even set foot in this room.' How was that possible?

An archaeologist was found poisoned in an ancient tomb during an excavation. The medical examiner said she ingested the poison precisely at noon. Three colleagues had alibis. Dr. Evans was adjusting the solar panels outside from 11:30 AM to 12:30 PM. Dr. Grant was developing photographs in the darkroom with no windows from 11:00 AM to 1:00 PM. Dr. Hayes was eating lunch in the camp cafeteria. Detective Cole arrested one of them for perjury. Who lied?