A night watchman claimed he fell asleep at his desk and woke up to find the museum safe blown open. Detective Dale examined the heavy steel safe door, which was blasted outward into the hallway. Dale immediately charged the watchman with an inside job. Why?
An explosion inside a safe blows the door inward, not outward into the hallway.
An explosive charge placed inside a safe pushes outward against the internal walls, causing the door to cave inward. A door blown outward into the room proves the explosives were detonated from the outside hallway by an accomplice.
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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