The World's 200 Hardest Brain Teasers PDF Download

Author: Gary Gary Gruber
Publisher: Sourcebooks, Inc.
ISBN: 1402257511
Category : Games & Activities
Languages : en
Pages : 201

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Book Description
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).

Author: Henry E. Dudeney
Publisher: Courier Dover Publications
ISBN: 0486796868
Category : Mathematics
Languages : en
Pages : 449

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Book Description
This compilation of long-inaccessible puzzles by a famous puzzle master offers challenges ranging from arithmetical and algebraical problems to those involving geometry, combinatorics, and topology, plus game, domino, and match puzzles. Includes answers.

Author: Ian Livingstone
Publisher: Simon and Schuster
ISBN: 1626367167
Category : Games & Activities
Languages : en
Pages : 504

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Book Description
A great way to have fun and build brain power, Brain Teasers offers a variety of games to delight and challenge even the most advanced puzzler. Brain Teasers shows off some outrageously fun new mindbenders, like anasearches (a combination of an anagram, a crossword, and a word search), numberlockers (think of a crossword puzzle with numbers instead of words), and alphabetics (a miniature crossword puzzle that uses each letter of the alphabet exactly once). Perfect for anyone who sits down with the New York Times crossword puzzle every morning or works through Sudoku puzzles on the way home, this book is guaranteed to excite your mind and jump-start your brain.

Author: John Kador
Publisher: McGraw Hill Professional
ISBN: 0071446060
Category : Business & Economics
Languages : en
Pages : 258

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Book Description
The inside track on how to beat the "logic puzzle" job interview As if job interviews weren't nerve-wracking enough, many companies, in their pursuit of the brightest and best, have begun beleaguering applicants with tests of logic, creativity, and analytical abilities. Many firms have replaced traditional interview questions such as "Tell us about yourself" or "What's your biggest weakness?" with mind-benders such as: Why are beer cans tapered at both ends? How many piano tuners are there in the world? How many Ping-Pong balls can you stuff into a Boeing 747? How would you design a bathroom for the CEO of the company? If you could remove any one of the 50 U.S.states, which one would it be? In How to Ace the Brain Teaser Interview, bestselling careers author John Kador gives readers the inside track on this new interview technique. He provides 75 puzzles actually used by HR departments across the nation, and he offers tips on how to solve them and present the solutions so as to make the best possible impression.

Author: Usa Today
Publisher: Andrews McMeel Publishing
ISBN: 0740777513
Category : Games & Activities
Languages : en
Pages : 482

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Book Description
You can be sitting in the train working on a puzzle but it can take you far away from the everyday. Before you know it you're at your stop or about to pass it. It's not like you were even in the train. It's something different, something removed from the ordinary." --Maki Kaji, Japanese Times The Nation's No. 1 Newspaper offers puzzlesmiths the ultimate cranium compendium boasting five challenging mind teasers. USA TODAY is America's most recognized newspaper reaching more than 5 million people each day. Now, USA TODAY has collected five popular game formats into one book, including: Logic Puzzles, Crossword, Killer Sudoku, and Hitori. Complete with 400 puzzles (that's twice the size of comparable game books), USA TODAY Jumbo Puzzle Book includes an introductory chapter that offers solution tips as well as a concluding chapter that reveals all the answers. Pen and pencil puzzles are big business. According to a national poll by the American Society on Aging, 84 percent of people report that they spend time daily in activities that are good for brain health.

Author: Shakuntala Devi
Publisher: Orient Paperbacks
ISBN: 9788122200140
Category : Games & Activities
Languages : en
Pages : 148

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Book Description
Discover the adventure and excitement of mathematical puzzles. Match your wits with the human computer. Sharpen your intellect, delight your friends and enjoy hours of purposeful entertainment. Mathematics is not always hard, mind-boggling stuff. It can also be simple, delightful and interesting. Many famous mathematicians are known to be devoted to peg jumping puzzles. It is perhaps this kind of play that leads to scientific discoveries. The celebrity author, Shakuntala Devi, is regarded as 'authentic heroine of the twentieth century'. She calculates faster than the fastest computer, is listed in the Guinness Book of World Records and continues to amaze audiences around the world with her feats of calculation.

Author: Danielle Hall
Publisher: Sourcebooks, Inc.
ISBN: 1646119800
Category : Juvenile Nonfiction
Languages : en
Pages : 88

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Book Description
What's challenging, fun, and sure to give your brain a workout? This riddle book for kids ages 9-12! Riddle me this—can you solve these super hard word puzzles? You sure can! Featuring nearly 200 brain benders, this riddle book for kids ages 9-12 is the ultimate option for clever children who love thinking outside the box. This big riddle book for kids ages 9-12 will test the limits of your imagination. Start things off with handy tips and simple warm-up riddles that will help you twist your thinking and get creative. What's the difference between a bird and a fly? Tie your brain in knots and find out inside! Tons of tough riddles—Build your problem-solving abilities and stretch your creative thinking skills as you unravel all kinds of perplexing puzzles. Learn about history's biggest puzzlers—Try your hand at some of the world's most famous riddles, like the Riddle of the Sphinx or Bilbo's riddle from The Hobbit, while also learning fun facts about their history. Easy to use—Tips, hints, and an organized answer key in the back make it easy to get solving with your friends and family anytime. Overcome the mind-blowing mysteries inside the very best riddle book for kids ages 9-12!

Author: Highlights
Publisher: Highlights Press
ISBN: 1644723344
Category : Juvenile Nonfiction
Languages : en
Pages : 148

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Book Description
Packed with dozens of the most difficult Hidden Pictures puzzles Highlights has ever created, this book is perfect for advanced puzzlers ages 8-12 looking for a next-level challenge! This jam-packed collection includes over 80 advanced Hidden Pictures puzzles, including photo puzzles, puzzles without clues, puzzles with scrambled clues and more. A great gift for anyone who loves a puzzle challenge, this engaging activity book is filled with more than 1,500 total objects to find. Kids (and grown-ups, too) will need to keep their eyes peeled searching through hilarious scenes like sloths playing ping pong, dogs enjoying a fiesta, and a fishy carnival. There are both full-color and classic black-and-white scenes to solve. Over 125 pages of puzzles adds up to hours of screen-free fun, great for keeping kids engaged during road trips or rainy afternoons at home. Plus, this book is crafted by puzzle experts to include learning benefits parents can count on. Searching for hidden objects is a great way for kids to develop important school skills like vocabulary, concentration and visual perception. Every puzzle solved will boost kids’ confidence and encourage them to take on new challenges.

Author: Elkhonon Goldberg
Publisher: Oxford University Press
ISBN: 0199758506
Category : Medical
Languages : en
Pages : 353

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Book Description
Elkhonon Goldberg's groundbreaking The Executive Brain was a classic of scientific writing, revealing how the frontal lobes command the most human parts of the mind. Now he offers a completely new book, providing fresh, iconoclastic ideas about the relationship between the brain and the mind. In The New Executive Brain, Goldberg paints a sweeping panorama of cutting-edge thinking in cognitive neuroscience and neuropsychology, one that ranges far beyond the frontal lobes. Drawing on the latest discoveries, and developing complex scientific ideas and relating them to real life through many fascinating case studies and anecdotes, the author explores how the brain engages in complex decision-making; how it deals with novelty and ambiguity; and how it addresses moral choices. At every step, Goldberg challenges entrenched assumptions. For example, we know that the left hemisphere of the brain is the seat of language--but Goldberg argues that language may not be the central adaptation of the left hemisphere. Apes lack language, yet many also show evidence of asymmetric hemispheric development. Goldberg also finds that a complex interaction between the frontal lobes and the amygdale--between a recently evolved and a much older part of the brain--controls emotion, as conscious thoughts meet automatic impulses. The author illustrates this observation with a personal example: the difficulty he experienced when trying to pick up a baby alligator he knew to be harmless, as his amygdala battled his effort to extend his hand. In the years since the original Executive Brain, Goldberg has remained at the front of his field, constantly challenging orthodoxy. In this revised and expanded edition, he affirms his place as one of our most creative and insightful scientists, offering lucid writing and bold, paradigm-shifting ideas.

Author: Martin Gardner
Publisher: W. W. Norton & Company
ISBN: 9780393020236
Category : Mathematics
Languages : en
Pages : 748

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Book Description
No amateur or math authority can be without this ultimate compendium of classic puzzles, paradoxes, and puzzles from America's best-loved mathematical expert. 320 line drawings.