Hard
Genius Level Riddles
15 XP

The Surprise Examination

17,181 solved 76% solve rate 24% fail rate
A teacher tells students: There will be a surprise exam next week. It cannot be Friday (because Thursday night youd know). By the same logic, it cannot be Thursday, Wednesday, Tuesday, or Monday. Can the exam happen?
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Quick Answer & Explanation
Yes, any day works

The answer to this riddle is Yes, any day works. Difficulty: Hard · Solved by 17,181 puzzle lovers.

Yes, any day works - because the students logic leads them to believe no exam is possible, every day becomes a surprise again. This is a paradox.
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