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Detective riddle

An ancient manuscript was stolen from a glass case during a massive blackout. The lights went out for exactly three minutes. When power returned, the case was empty. Three guards were on duty: Guard A was eating a sandwich, Guard B was holding a flashlight, and Guard C was listening to the radio. Detective Sterling arrested Guard B. Why?

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

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