A collector's spook-themed vintage radio was stolen from a completely pitch-black room during a power outage. A suspect claims: 'I didn't take it! I was sitting quietly in the pitch-black room admiring my own clear reflection in the large wall mirror.' Why does Detective Roy immediately know the suspect is lying?
You cannot see a reflection in a mirror in complete darkness without a light source.
Reflections require light to bounce off an object into the mirror and back to the eye; in a pitch-black room, a mirror shows nothing.
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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