FT.com will bring you the crossword from Monday to Saturday as well as the Weekend FT Polymath, Word Circle and Binary Puzzle. ft.com/puzzles ...
Here’s a classic brainteaser that I don’t like. What’s the next number in this sequence: 1, 11, 21, 1211, 111221, …? The answer is 312211, because each number describes the digits in the number that ...
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