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A mathematical puzzle whose essential nature involves randomness. Use with [mathematics]

A probability puzzle is a puzzle, usually mathematical, that involves uncertain outcomes.

Probability puzzles often involve , , or , although other mechanisms may act as sources of uncertain outcomes.

For example: Left coin, right coin, last coin?

Another example of a probability puzzle is the Monty Hall problem: the game show problem with three doors, one car, and two goats.

General probability questions are off-topic but can be asked on our sister site Mathematics Stack Exchange with the tag (some questions can be found here).