A security guard sleeps during the day and works at night. One Tuesday afternoon, he hears a loud crash outside his window. He wakes up immediately, looks out, and arrests a neighbor for vandalism. Why was he arrested?
Because it was the middle of the night in his time zone / schedule, or the guard was sleeping during the day.
Wait, the question says 'one Tuesday afternoon'. If he sleeps during the day, waking up in the afternoon means he is waking up, but the riddle is a trick: why arrest someone for a crash in the afternoon? Actually, the guard sleeps during the day, so waking up in the afternoon means he was sleeping when he shouldn't be? No, let's look closer: The guard works at night and sleeps during the day. If he hears a crash in the afternoon, he's sleeping during the day, so arresting someone means he was awake during the day. Wait, the simplest answer is: He was fired, or he arrested the neighbor because the neighbor broke into his house. Let's make it simpler: The guard was sleepwalking.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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