An antique pocket watch was reported stolen from a display. Three suspects were questioned: Arthur said he was reading, Beatrice said she was polishing silver, and Charles said he was looking at his own watch. Detective Roy arrested Charles immediately. Why?
Pocket watches don't tick visibly or require constant looking unless broken
Antique pocket watches do not have glowing digital screens or continuous movement worth 'looking at' constantly in a dark room without winding it. Wait, the flaw is that pocket watches are kept in pockets; you don't 'look at your own pocket watch' casually while standing idle unless you're checking time, but Charles specified he was 'looking at his watch' as an alibi for a visual task.
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.
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