Quiz your family at home with crosswords, puzzles and games.200 taxing brain teasers and riddles, demanding lateral thinking skills to solve. Ingenious challenges - some just a paragraph long, others with an accompanying diagram. You will need mathematical or logical reasoning to solve these.These teasers are for puzzlers of all abilities, no formal knowledge is required, just application and imagination.Some demand a logical approach, others a good mathematical mind; an agility with words will solve a handful more, but all demand a logical approach and lots of lateral thinking.Answers are given at the back of the book.Now get your thinking cap on!

Dozens of compelling and addictive mathematical puzzles twillchallenge your mental arithmetic and powers of deductive reasoning. Tetonor rules: each number in the main grid can be formed by adding or multiplying a pair of numbers in the strip below the grid. Each pair of numbers should be used twice: once as part of an addition and once as part of a multiplication. For example, a 10 and 24 in the main grid may be solved by the sums, 4 + 6 and 4 x 6, respectively. Enter each sum in the boxes below its answer. Any blanks in the strip must be deduced, bearing in mind the numbers are listed in ascending order. 60 Easy, 80 Medium and 60 Difficult puzzles included.

A mental workout to rival Su Doku! Dozens of compelling and addictive maths puzzles to challenge your mental arithmetic, multiplication skills and powers of deductive reasoning. For all number puzzles addicts. Varying levels of difficulty. Tetonor rules: each number in the main grid can be formed by adding or multiplying a pair of numbers in the strip below the grid. Each pair of numbers should be used twice: once as part of an addition and once as part of a multiplication. For example, a 10 and 24 in the main grid may be solved by the sums, 4 + 6 and 4 x 6, respectively. Enter each sum in the boxes below its answer. Any blanks in the strip must be deduced, bearing in mind the numbers are listed in ascending order. Ideal for relaxing at home, on holiday or on the daily commute. Use your mental agility, logic and powers of deduction to tackle this collection of brainteasing puzzles from The Sunday Times. 60 easy, 80 medium and 60 difficult puzzles included.

A handy, smaller, and more focused version of our popular New York Times knowledge books—organized by weekends and topic Fell asleep during history class in high school when World War II was covered? Learned the table of elements at one time but have forgotten it since? Always wondered who really invented the World Wide Web? Here is the book for you, with all the answers you've been looking for: The New York Times Presents Smarter by Sunday is based on the premise that there is a recognizable group of topics in history, literature, science, art, religion, philosophy, politics, and music that educated people should be familiar with today. Over 100 of these have been identified and arranged in a way that they can be studied over a year's time by spending two hours on a topic every weekend.

A series of 200 taxing brain teasers and riddles, requiring lateral thinking skills to solve. These brainteasers are for puzzlers of all abilities, no formal knowledge is required, just application and imagination. Some demand a logical approach, others a good mathematical mind; an agility with words will solve a handful more, but all demand a logical approach and lots of lateral thinking. If you get stuck, full explanations of the solutions are given at the back of the book. Now get your thinking cap on!

WOULD BLETCHLEY PARK--THE TOP-SECRET HOME OF BRITISH WORLD WAR II CODEBREAKERS--HAVE RECRUITED YOU? PUT YOUR MENTAL AGILITY TO THE TEST WITH THESE FIENDISHLY CHALLENGING PUZZLES AND FIND OUT. Have a knack for mastering Morse code? Want to discover whether your crossword hobby might have seen you recruited into the history books? Think you could have contributed to the effort to crack the Nazis' infamous Enigma code? Then this book about Bletchley Park was custom-made for you. When scouring the population for codebreakers, Bletchley Park recruiters left no stone unturned. They devised various ingenious mind-twisters to assess the puzzle-solving capacity of these individuals--hidden codes, cryptic crosswords, secret languages, and complex riddles. These puzzles, together with the fascinating recruitment stories that surround them, are contained in this book, endorsed by Bletchley Park itself. Though they had diverse backgrounds, the codebreakers of Bletchley Park were united in their love of a good puzzle. If you are of the same persuasion, put your intelligence to the test with the mind-boggling puzzles on these pages and ask yourself: Would Bletchley Park have recruited YOU?

Educational resource for teachers, parents and kids!