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E-book
Author Gruber, Gary R.

Title The world's 200 hardest brain teasers : mind-boggling puzzles, problems, and curious questions to sharpen your brain / Gary R. Gruber
Published Naperville, Ill. : Sourcebooks, [2010]
©2010
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Description 1 online resource (xiv, 188 pages) : illustrations
Summary FLEX YOUR brain power like never before!A ship is twice as old as the ship's boiler was when the ship was as old as the boiler is. The ratio of the boiler's age now to the ship's age now is what?Gary R. Gruber, PhD, and school districts throughout the country. Dr. Gruber's innovative problem-solving strategies make up the heart of the new MyMaxScore's online test prep (www.mymaxscore.com)
Notes Print version record
Subject Lateral thinking puzzles.
Genre/Form Logic puzzles.
Puzzles and games.
Form Electronic book
ISBN 1402257511 (electronic bk.)
140225752X (electronic bk.)
9781402257513 (electronic bk.)
9781402257520 (electronic bk.)
Other Titles Brain teasers
World's two hundred hardest brain teasers