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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!
"There is mental entertainment, magic, math, and more in this collection of classic tricks and problems."-Student Library Journal. Although referring to Townsend's 'The World's Most Challenging Puzzles,' this quote is applicable to his entire puzzle cannon. If you enjoy pitting yourself against the most challenging puzzles in existence and are a glutton for punishment, then one or all of these books are for you. Take your pick among 'The World's Trickiest,' 'Most Perplexing,' 'Most Incredible,' 'Greatest,' 'Most Amazing,' 'Most Baffling,' 'Most Challenging,' and 'Best.' Choose from any of the eight, or all eight, and see how you stand up against Charles Barry Townsend-'the Professor of Perplexing Puzzles." 128 pages, 100 b/w illus., 5 3/8 x 8 1/4.
"There is mental entertainment, magic, math, and more in this collection of classic tricks and problems."-Student Library Journal. Although referring to Townsend's 'The World's Most Challenging Puzzles,' this quote is applicable to his entire puzzle cannon. If you enjoy pitting yourself against the most challenging puzzles in existence and are a glutton for punishment, then one or all of these books are for you. Take your pick among 'The World's Trickiest,' 'Most Perplexing,' 'Most Incredible,' 'Greatest,' 'Most Amazing,' 'Most Baffling,' 'Most Challenging,' and 'Best.' Choose from any of the eight, or all eight, and see how you stand up against Charles Barry Townsend-'the Professor of Perplexing Puzzles." 128 pages, 125 b/w illus., 5 3/8 x 8 1/4.
Presents a collection of riddles, logic puzzles, anagrams, word puzzles, and other types of brain-teazers.
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! 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? What English word contains all the vowels, in alphabetical order? What is the three-digit number that can be made from the digits 2, 3, 5, and 7 where no two digits in the three-digit number are alike, and where the three-digit number is a multiple of each of the digits chosen? Stumped? Dr. Gruber reveals the fascinating explanations and detailed strategies for solving even the trickiest problems using his exclusive Gruber Method. DISCLAIMER: The brain teasers in this book may get you so wrapped up in critical thinking that you may not be able to do your regular work until you solve them! Any abrupt or gradual increase in creativity, intelligence, or motivation to get a better job suited to your newfound talents is strictly the reader's responsibility. For more than thirty years, Gary R. Gruber, PhD, has been recognized as a leading expert on the SAT, test-taking methods, and critical-thinking skills. His methods have been used by PBS, Sylvan Learning Centers, Grolier's Encyclopedia, 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).
This book contains AI Escargot, the world famous sudoku puzzle which became the most difficult sudoku puzzle known in 2006. There are also several hints for solving AI Escargot in the shortest and most logical way. In addition, the book has 166 other sudoku puzzles in 11 categories. This makes it very convenient to find out your own level and to learn more! The author, Arto Inkala, is a puzzle creator and a doctor of science in the field of applied mathematics.
Word and number problems, visual mysteries, and even sneaky puns and riddles will keep solvers on their mental toes as they try to uncover their solutions. There are pictures filled with mistakes to find, matchstick games, scrambled words, rebuses, crafty calculations, and much more.
This is not really a book. This is a building in the shape of a book...a maze. Each numbered page depicts a room in the maze. Tempted? Test your wits against mine. I guarantee that my maze will challenge you to think in ways you've never thought before. But beware. One wrong turn and you may never escape!
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 Agatha Christie had a literary love child, this would be it.' The Daily Telegraph In 1934, the Observer's cryptic crossword compiler, Edward Powys Mathers (aka Torquemada), released a novel that was simultaneously a murder mystery and the most fiendishly difficult literary puzzle ever written. The pages have been printed in an entirely haphazard order, but it is possible - through logic and intelligent reading - to sort the pages into the only correct order, revealing six murder victims and their respective murderers. Only three puzzlers have ever solved the mystery of Cain's Jawbone: do you have what it takes to join their ranks? Please note: this puzzle is extremely difficult and not for the faint-hearted. 'A unique hybrid of word puzzle and whodunnit.' Literary Review
Different types of puzzles-verbal, geometric, matchstick-are included in this collection.