Random Puzzles 

If tomorrow's yesterday is today…

…what day is yesterday's tomorrow?

Puzzle Copyright © Kevin Stone

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Using exactly four straight lines, without taking your pen off the (virtual) paper, can you join all nine dots?



Note: this puzzle is not interactive, and cannot be clicked.

A Charming Puzzle, Twentieth Century Standard Puzzle Book, A. Cyril Pearson.

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How many squares, of any size, are on a board divided up into 6 squares by 6 squares?

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What is the minimum number of queens required on a chessboard such that all squares are attacked?

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