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The World's 200 Hardest Brain Teasers: Mind-Boggling Puzzles, Problems, and Curious Questions to Sharpen Your Brain
The World's 200 Hardest Brain Teasers MindBoggling Puzzles Problems and Curious Questions to Sharpen Your Brain
Author: Gary Gruber
FLEX YOUR brain power like never before! From acclaimed author Dr. Gary Gruber, whose proven critical-thinking methods have sold more than seven million books, this collection of mind-bending brain teasers is sure to challenge even the most experienced problem solver. Inside are logic puzzles, riddles, maddening math problems, mental games, and ...  more »
ISBN-13: 9781402238574
ISBN-10: 1402238576
Publication Date: 8/1/2010
Pages: 208
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Publisher: Sourcebooks
Book Type: Paperback
Members Wishing: 0
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