A diamond merchant was robbed in his seventh-floor apartment. He told police the thief rappelled down from the roof and smashed the balcony window. Detective Vance walked out onto the balcony, looked up at the overhang, and immediately knew the merchant was lying. Why?
Dust on the balcony railing
The balcony railing was covered in a thick, undisturbed layer of dust and spiderwebs. If someone had rappelled down from the roof past the balcony, they would have disturbed or wiped away the dust on the railing.
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: Medium. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
More detective riddles
Five guests sign the hotel log one by one, and the manager remembers only these facts. Iris signed before Hugo. Hugo signed before Gwen. Gwen signed before Carmen. Carmen signed before Elena. Who signed second?
A priceless diamond was stolen from a glass display case. The guard swore nobody entered the room, yet the glass was shattered inward, with all the shards lying neatly inside the case on the velvet cushion. How did the thief pull it off?
Inspector Vance found the victim slumped over a desk with a punctured tea cup, a spilled inkwell, a torn calendar showing June 14th, and a smashed pocket watch stopped at 8:15. The suspect claimed he was miles away all evening. What exposed the suspect's lie immediately?
A priceless medieval sword was stolen from a glass display case in a manor. The investigator noted that the glass was smashed inward, and tiny fragments of red wool fibers were caught on the jagged glass edges. Three suspects were questioned: the butler (wearing a blue linen suit), the gardener (wearing green cotton overalls), and the stable boy (wearing a red wool sweater). The stable boy immediately claimed he lost his sweater in the stables yesterday. Detective Vance arrested him on the spot. Why?
Detective Miller walked into the galley kitchen where a chef lay unconscious. The gas stove was hissing, filling the room with natural gas. On the counter sat a bowl of unwhipped cream, a whisk, and a burning candle. Miller immediately turned off the gas and called an ambulance. What saved the room from exploding before Miller arrived?
A wealthy merchant was murdered on a Tuesday. The butler said he was sorting the mail, the cook said she was chopping vegetables, and the gardener said he was watering the outdoor ferns. The detective arrested the gardener on the spot. Why?