World's 200 Hardest Brain Teasers: Mind-Boggling Puzzles, Problems, and Curious Questions to Sharpen Your Brain

by Gary R Gruber

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  • ISBN10 1402238576
  • ISBN13 9781402238574
  • Publish Date 1 August 2010
  • Publish Status Out of Print
  • Out of Print 19 December 2011
  • Publish Country US
  • Imprint Sourcebooks, Inc
  • Format Paperback
  • Pages 304
  • Language English