365 Mensa Brain Puzzlers Page-A-Day Desk Calendar: 365 Brain Puzzlers is the calendar that feeds brainiac's cravings for pure mental challenge. Every day offers a lively word game or number conundrum tough enough to be sanctioned by Mensa, the internationally famous high-IQ society, but fun enough to keep puzzle lovers clamoring for more. And, in case the puzzle wins out, answers are printed on the reverse side of each page. EAN: 9780761174004 ISBN: 0761174001