Discover the adventure and excitement of mathematical puzzles! Match your wits with the human computer!! Sharpen your intellect, delight your friends and enjoy hours of purposeful entertainment!
The celebrity author, Shakuntala Devi, is regarded as 'authentic heroine of the twentieth century'. She calculates faster than the fastest computer, is listed in the Guinness Book of World Records and continues to amaze audiences around the world with her feats of calculation - Puzzles To Puzzle You by Devi Shakuntala
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