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Match your mind with the world's greatest brains! If you can match minds with the greatest brains, then you have a chance of solving these puzzles. Try this one right now: A word I know, six letters it contains, subtract just one and twelve, you'll find, remains. If you can prove that six minus one equals twelve, you win the prize for smart thinking! If you miss it, or any others in this book, all the answers are at the back. Great cartoons and illustrations will help and entertain you, while your brain gets to work on these topnotch, trick challenges. More than 90 of the world's hardest puzzles start with super-hard puzzles and move up to out of this world hard. You'll love each and everyone!
Match your mind with the world's greatest brains! If you can match minds with the greatest brains, then you have a chance of solving these puzzles. Try this one
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,
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Six murders. One hundred pages. Millions of possible combinations... but only one is correct. Can you solve Torquemada's murder mystery? 'If James Joyce and Aga
