Detective Vance found a coded message left on a desk: '5, 9, 12, 15'. Next to the desk sat a calendar opened to May, September, December, and... wait. Let's do a calendar riddle: A man claims he was kidnapped on February 31st and held for a week. Why did the detective arrest him for filing a false report?
February 31st does not exist
February never has 31 days, proving the man fabricated the entire kidnapping story.
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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