For daring puzzlers--a book of mind-bending conundrums handpicked by the pied piper of popular math Long before Sudoku swept the world, the Victorians puzzled over relationships ( If two men each marry the other's widowed mother, what is the relationship between their sons? ), and the ancient Chinese favored counting challenges ( If a cock costs 5 pieces, a hen 4 pieces, and a chick 1/4 of a piece, how can you buy 100 total cocks, hens, and chicks with 100 pieces? ). Some people may claim to "hate math"--but history is proof that everybody loves a good puzzle From Alex Bellos, math writer extraordinaire and official puzzler to the Guardian , this is the ultimate compendium of math and logic brainteasers--packed with 125 questions, fun trivia, and (naturally ) answers in the back. Can you solve his problems?.