The Riddler

The Riddler is a weekly set of online puzzles and brain games by FiveThirtyEight.

Latest puzzle Weekly email Riddler book

You Have $1 Billion To Win A Space Race. Go.

Edited by Oliver Roeder

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Can You Solve This Napoleonic Puzzle?

Edited by Oliver Roeder

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Can You Solve The Impossible Puzzle?

Edited by Oliver Roeder

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Should You Pay $250 To Play This Casino Game?

Edited by Oliver Roeder

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Can You Best The Mysterious Man In The Trench Coat?

Edited by Oliver Roeder

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Should You Shoot Free Throws Underhand?

Edited by Oliver Roeder

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Can You Win This Hot New Game Show?

Edited by Oliver Roeder

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Can You Decode The Four Secret Messages?

Edited by Oliver Roeder

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Will Someone Be Sitting In Your Seat On The Plane?

Edited by Oliver Roeder

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Will The Dog Catch The Duck?

Edited by Oliver Roeder

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