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Are your neurons up to the task? 365 Brain Puzzlers is the bestselling calendar that delivers a year of engaging and entertaining mental conundrums tough enough to be sanctioned by Mensa, the internationally famous high-IQ society. Every day is a logic game, math riddle, word puzzle, or spatial challenge guaranteed to make the brainiac sweat. Can't figure it out? No problem--answers are printed on the reverse side of each page.