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Author: Peter Grabarchuk Publisher: Courier Dover Publications ISBN: 0486810046 Category : Games & Activities Languages : en Pages : 101
Book Description
Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? On my broken calculator with keys + - ÷ x =, the only functional number is 7. How can I get 34 to appear in the readout? A country mints four denominations of coins, in whole numbers of cents. It takes four of these coins to make 21¢, or 24¢, or 25¢, or 26¢. What are the denominations of the coins? These and almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers. A unique puzzle project, it unites the efforts of a dozen authors, including software engineer Andrea Gilbert and Bram Cohen, author of the P2P BitTorrent protocol. Seventeen different types of challenges include 3-D puzzles, chess puzzles, connections, dissections, foldings, geometrical puzzles, logic problems, matchstick puzzles, mazes, moving pieces, number puzzles, put-togethers, strimko, sudoku, visual puzzles, weightings, and word puzzles. The difficulty level of each puzzle is marked by stars, ranging from 2 to 5. Average difficulty level is about 3 stars, promising puzzle enthusiasts many entrancing hours of solving and enjoyment.
Author: Peter Grabarchuk Publisher: Courier Dover Publications ISBN: 0486810046 Category : Games & Activities Languages : en Pages : 101
Book Description
Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? On my broken calculator with keys + - ÷ x =, the only functional number is 7. How can I get 34 to appear in the readout? A country mints four denominations of coins, in whole numbers of cents. It takes four of these coins to make 21¢, or 24¢, or 25¢, or 26¢. What are the denominations of the coins? These and almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers. A unique puzzle project, it unites the efforts of a dozen authors, including software engineer Andrea Gilbert and Bram Cohen, author of the P2P BitTorrent protocol. Seventeen different types of challenges include 3-D puzzles, chess puzzles, connections, dissections, foldings, geometrical puzzles, logic problems, matchstick puzzles, mazes, moving pieces, number puzzles, put-togethers, strimko, sudoku, visual puzzles, weightings, and word puzzles. The difficulty level of each puzzle is marked by stars, ranging from 2 to 5. Average difficulty level is about 3 stars, promising puzzle enthusiasts many entrancing hours of solving and enjoyment.
Author: Andy Parr Publisher: Courier Dover Publications ISBN: 0486813487 Category : Games & Activities Languages : en Pages : 99
Book Description
Treasury of 300 puzzles features 3D and chess puzzles, connections, dissections, foldings, geometrical and number puzzles, logic problems, matchstick puzzles, mazes, moving pieces, put-togethers, strimkos, sudoku, and visual and word puzzles.
Author: Pauline Malkoun Publisher: ISBN: 9781922641298 Category : Juvenile Nonfiction Languages : en Pages : 50
Book Description
Not only are word puzzles fun but they are great for building literacy skills. They can help develop word recognition, pattern recognition skills, improve spelling, expand and revise vocabulary Puzzle Boxes Volume 1 contains 30 9 letter puzzle boxes. Your challenge is to work out the 9 letter word and as many more words as you can. Can you solve every puzzle box?
Author: Marcel Danesi Publisher: Simon and Schuster ISBN: 1507204140 Category : Games & Activities Languages : en Pages : 224
Book Description
This brand-new puzzle book features 200 logic questions of varying types and difficulty. Mental workout warriors and logic lovers will adore The Everything Book of Logic Puzzles Volume I. You’ll learn ten different kinds of puzzles and how to solve each, with the difficulty slowly increasing from basic to expert as you go along. And every single puzzle is specifically designed to improve memory, vocabulary, and logical reasoning. With increasingly difficult puzzles ranging from introductory to fiendish, and comprehensive answers to explain each puzzle, this book is perfect for puzzlers of all ages and skill levels!
Author: Penny Warner Publisher: Darby Creek ™ ISBN: 1512419052 Category : Juvenile Fiction Languages : en Pages : 157
Book Description
The Code Busters are excited for their class field trip to Angel Island, known as the Ellis Island of the West. One of Mika's ancestors passed through the island's immigration station in the early twentieth century, and Mika thinks he may have left behind some secret messages . . . plus a very special box. But as the Code Busters search for hints from the past, they get caught up in an even bigger secret. Can you crack the code? Test your brain with the Code Busters to see if you have the right stuff to be an ace detective. Answers are in the back, in case you get stuck.
Author: Peter Donahue Publisher: Courier Corporation ISBN: 0486782484 Category : Juvenile Nonfiction Languages : en Pages : 68
Book Description
Invites youngsters to find ten or more differences between slightly changed versions of the same photograph of everyday activities, groups of objects, and other scenes.
Author: Merv Griffin Publisher: Bantam Books ISBN: 9780553272048 Category : Games Languages : en Pages : 192
Book Description
Provides one hundred and fifty word puzzles, which, like the Wheel of Fortune game show, must be solved by guessing one letter at a time
Author: Usa Today Publisher: Andrews McMeel Publishing ISBN: 0740777513 Category : Games & Activities Languages : en Pages : 482
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: Peter Grabarchuk
Author: Peter Grabarchuk
Author: Andy Parr
Author: K.M. Carroll
Author: Pauline Malkoun
Author: 
Author: Marcel Danesi
Author: Penny Warner
Author: Peter Donahue
Author: Merv Griffin
Author: Usa Today