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Puzzles To Puzzle You

Author: Shakuntala Devi

Publisher: Orient Paperbacks

Published: 2005-03

Total Pages: 148

ISBN-13: 9788122200140

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.

The 125 Best Brain Teasers of All Time

Author: Marcel Danesi

Publisher: Simon and Schuster

Published: 2018-05-22

Total Pages: 208

ISBN-13: 1641520086

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Solve history's greatest puzzles with this classic collection of brain teasers from The Best Brain Teasers of All Time. The best brain teasers are those that have challenged and captivated the attention of puzzle lovers throughout time. Collected here to keep your wits sharp, The Best Brain Teasers of All Time features the cleverest brain teasers from around the world and throughout history. The Best Brain Teasers of All Time gives you hours of fun-filled entertainment with brain teasers that develop your problem-solving skills in math, logic, and wordplay. Organized as an integrated challenge, these brain teasers build in momentum as they increase in difficulty from classic nursery rhymes to the riddle of the sphinx. The Best Brain Teasers of All Time puts your mind to the test with: 125 Brain Teasers that require no special skills to solve. Plus, each question comes with an optional clue in case you get stumped and a handy answer key in the back to test yourself or play with friends Brain Teasers for Every Level that cater to beginners and advanced masterminds alike, with brain teasers organized by level of difficulty to improve your skills as you move forward Hints of History that provide fun facts and background information for every brain teaser Get ready to sharpen your wit with every "aha" moment. The Best Brain Teasers of All Time is a go-to source for timeless fun and mind-blowing challenges.

The World's 200 Hardest Brain Teasers

Author: Gary Gary Gruber

Publisher: Sourcebooks, Inc.

Published: 2010-08-01

Total Pages: 201

ISBN-13: 1402257511

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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).

The 100 Best Brain Teasers for Kids

Author: Danielle Hall

Publisher: Sourcebooks, Inc.

Published: 2021-05-04

Total Pages: 105

ISBN-13: 1648762298

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Put your thinking skills to the test with fun and tricky brain teasers for kids 8 to 12 Get ready to flex your mind muscles and think outside the box with The 100 Best Brain Teasers for Kids. You'll follow Ace the alien wizard and their trusty cat Panther as you tackle puzzles and riddles that test your knowledge of wordplay, logic, and math. Will you rescue the Beloved Crystal from the mischievous Flarkspurians and bring peace to Witloo? The quest is yours to complete! 5 levels of play—Explore 100 brain teasers that get tougher as you go, so you stay sharp and improve your creative thinking skills! Clues and answers—Check the Clues section for hints from Panther if you get stuck, and check the Answer Key at the back when you think you've solved the puzzle. Crafty characters—Meet a whole cast of aliens, wizards, and animal friends as you adventure your way through word ladders, logic grids, number formulas, and more! Power up your mind with brain teasers that help you learn new skills and become an intergalactic hero!

10-Minute Brain Teasers

Author: Gareth Moore

Publisher: Skyhorse Publishing Inc.

Published: 2010-07-08

Total Pages: 257

ISBN-13: 1616080248

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Take your brain to the gym and give it a good workout--no pain, no...

Forever Undecided

Author: Raymond M. Smullyan

Publisher: Knopf

Published: 2012-07-04

Total Pages: 286

ISBN-13: 0307962466

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Forever Undecided is the most challenging yet of Raymond Smullyan’s puzzle collections. It is, at the same time, an introduction—ingenious, instructive, entertaining—to Gödel’s famous theorems. With all the wit and charm that have delighted readers of his previous books, Smullyan transports us once again to that magical island where knights always tell the truth and knaves always lie. Here we meet a new and amazing array of characters, visitors to the island, seeking to determine the natives’ identities. Among them: the census-taker McGregor; a philosophical-logician in search of his flighty bird-wife, Oona; and a regiment of Reasoners (timid ones, normal ones, conceited, modest, and peculiar ones) armed with the rules of propositional logic (if X is true, then so is Y). By following the Reasoners through brain-tingling exercises and adventures—including journeys into the “other possible worlds” of Kripke semantics—even the most illogical of us come to understand Gödel’s two great theorems on incompleteness and undecidability, some of their philosophical and mathematical implications, and why we, like Gödel himself, must remain Forever Undecided!

Train Your Brain

Author: Puzzler Media

Publisher: Simon and Schuster

Published: 2011-02-23

Total Pages: 438

ISBN-13: 1626367108

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Just as diet and exercise can help you maintain your physical strength, daily stimulation of your brain can help save your brain from deterioration. The puzzles here are varied and include memory and logic tests; anagrams, word games, and word searches; arithmetic problems and crossword puzzles of all sorts; Futoshiki, Kakuro, and Sudoku tests; and so many more. The key to stimulating your mind is variety, not difficulty, so the puzzles have been devised to be accessible for brains of all ages. From memory quizzes to math problems, there is something here for everyone.

Quick-to-solve Brainteasers

Author: José Julián Mendoza Fernández

Publisher: Sterling Publishing Company, Inc.

Published: 1998

Total Pages: 100

ISBN-13: 9780806961514

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Don't think too hard or you'll never solve these logic puzzles and riddles. The answers to all 187 are easy once you catch the tricky wording. How can you tie a knot in a napkin by holding one end in each hand without letting go of it? Impossible, you say (or your friends will say, if you bet them). But: Cross your arms and hold a tip of the napkin in each hand. When you uncross your arms, the knot will be formed! Now try this riddle: I climbed up a cherry tree, where I found cherries. I did not pick cherries, nor did I leave cherries. How can you explain this? Answer: I climbed up a cherry tree with two cherries in my hand. I picked only one. I left the other one on the tree. I did not "pick cherries," because I "picked a cherry." Take this dare: My bird can fly faster than any supersonic plane. Here's how: If you put my bird inside any plane and make it fly in the same direction as the plane, it will go faster than the plane. 96 pages, 52 b/w illus., 5 3/8 x 8 1/4.

241 Real-World Brain Teasers.

Author: Invent and Discover

Publisher: Invent and Discover

Published: 2021-11-18

Total Pages: 224

ISBN-13:

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Enjoy figuring out creative solutions to real-world problems that have led to important inventions, discoveries, and innovations throughout history! Do you love trivia quizzes... but wish these didn't rely so much on useless facts that you either know or you don't, leaving no room for actual thinking? Do you enjoy logic puzzles... but want to learn something more valuable than just getting correct answers to abstract, theoretical problems? Something more practical and fundamental? This book aims to change the game. The problems in this book are related to erudition in fundamental areas - nature, technology, business, science, how things work, or why things are made in a certain way. But, unlike in trivia or jeopardy, you most probably do not know the answer. Instead, logic, out-of-the-box thinking, or intuition leap should be added to your general knowledge to puzzle out the correct solution. Experience walking in the footsteps of discoverers, inventors, and innovators through taking on real-world problems that challenge you to tap into lateral thinking and creativity. In this book, you will find: + 241 engaging problems across 12 fascinating topics: Ingenious Inventions, Business Innovations, Nature & Science, Historical Happenings, Folk Wisdom from different cultures around the world, and many more. + All problems have additional hints, which make it much easier to brainstorm. + Answers have explanations, going beyond fun facts, providing more insight and subject matter knowledge. + Chapters are arranged by difficulty and subject, so you have complete control over how you play. + An easy-to-navigate format eliminates the need to flip back and forth between sections, helping you keep the fun going and avoid accidentally stumbling upon answers. Each version of the book (ebook, paper book, audiobook) has its distinct structure. + All content is family-friendly and is ideal for adults and advanced teenagers. The "Easy Problems" chapters also work for gifted children. Children are often very good at ideation (idea generation) and solving problems creatively. Most stumpers of this book can be used as a mind game regardless of age, education, or background. Solo or in a team. + See inside for a link to download your FREE Bonus eBooks. Sharpen your logic, improve your analytical abilities, enhance your creativity, and develop your lateral thinking skills, all while having fun and learning more about the world around you.

Brain Games

Author: Allen D. Bragdon

Publisher: Skyhorse Publishing Inc.

Published: 2011-02-23

Total Pages: 225

ISBN-13: 1616081996

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Taxing, tempting, and fun, Brain Games will have your gray matter ship-shape in no time.