An elderly aristocrat was found dead in his armchair. A glass of poisoned wine sat on the table beside him. His nephew claimed he poured the wine for his uncle right before leaving the room. The butler claimed he never entered the study. The maid claimed she dusted the room at noon. Detective Vance noted that the glass had condensation on the outside, and the room was kept at a freezing 40 degrees Fahrenheit. Vance arrested the nephew. Why?
Wine does not form condensation at 40 degrees
Condensation forms on a glass when a warm, liquid-filled container meets warm, humid air, or when an ice-cold drink sits in a warm room. In a freezing 40-degree room, a glass of room-temperature wine would not produce condensation on the outside.
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.
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