Puzzle Box, Volume 1

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.

Puzzle Box

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.

Malevolent

Author: K.M. Carroll
Publisher: Less Than Three Productions
ISBN: 1514345501
Category : Young Adult Fiction
Languages : en
Pages : 233

Book Description

Colossal Book of Mathematics

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

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.

The Secret of the Puzzle Box

Author: Penny Warner
Publisher: Darby Creek
ISBN: 1541514947
Category : Juvenile Fiction
Languages : en
Pages : 196

Book Description
"The members of the Code Busters Club take a class trip to Angel Island--the Ellis Island of the West--where they discover a mysterious box with a connection to one of the Code Busters."--

The Everything Logic Puzzles Book Volume 1

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!

USA TODAY Jumbo Puzzle Book

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.

The Master Theorem

Author:
Publisher:
ISBN: 9780692189825
Category :
Languages : en
Pages :

Book Description

Spot the Differences Picture Puzzles for Kids

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.

Journal 29

Author: Dimitris Chassapakis
Publisher:
ISBN: 9781635871722
Category :
Languages : en
Pages : 148

Book Description
Journal 29 is a unique book game where you can solve riddles and puzzles and submit your answers online to get the keys and move forward.To solve the riddles, you need to think out of the box.You can write, draw, search, fold pages, combine different methods and try to get those riddles right.Journal 29 is a 148 pages book providing over 63 riddles you can solve.