Random Puzzles 

How many squares of any size on this chessboard do not contain a rook?

Puzzle Copyright © Kevin Stone

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What is the next number in this sequence:

0 · 0 · 1 · 2 · 2 · 4 · 3 · 6 · 4 · 8 · 5 · ?

Puzzle Copyright © Kevin Stone

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all matchstick puzzles

Can you make this equation correct by moving exactly one matchstick?



Note: this puzzle is not interactive, and the matchsticks cannot be moved. The matchstick layouts for each digit are:

Puzzle Copyright © Kevin Stone

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If Malcolm, Laura, John, Alan, Brenda and Kevin like chocolate …

… and Norman, Steve, Thomas, Zebedee do not …

… does Peter like chocolate?

Puzzle Copyright © Kevin Stone

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