The Mensa All-New Puzzle Bookhas something to offer all types of puzzle solver. It will appeal to casual fans who would like to try something a little more challenging, as well as experienced solvers, who will be sure to discover something new. All the puzzles have been created by the intelligence experts at Mensa.

A wide variety of puzzle types have been included from societies around the world. Many include a historical introduction and advice on how to solve them from Mensa's top puzzle-setters.

You don't need to be a genius or a professor of mathematics to have hours of fun with this book - just some logical thinking, a little common sense, a bit of general knowledge and the stubbom determination not to be beaten! Pit your wits against Mensa's masterminds with this huge collection of brain teasers. This book contains more than 500 puzzles and tests of all kinds to delight and bamboozle every type of puzzler.

It's not elementary, but you will need Holmes's famed powers of deduction to solve these crafty puzzles. Here's how it goes: at the end of each condundrum, you'll find at least one condition - and sometimes more - that the solution must meet.

It’s puzzle nirvana for crossword lovers who have just a few minutes to spare, but still crave a challenge. Adapted from the popular Mensa 10-Minute Crossword Puzzles Page-A-Day Calendar, Mensa 10-Minute Crossword Puzzles strikes a perfect balance: The puzzles are tough enough to be sanctioned by Mensa, the internationally famous high-IQ society, but are designed to be solvable in ten minutes or less. Expertly written by puzzle master Fred Piscop, Mensa member, author of the Mensa calendar, and frequent crossword contributor to both The New York Times and The Washington Post, these cleverly themed crossword puzzles will appeal to both seasoned solvers and novices looking to hone their skills. They are an addictive addition to your morning routine (just add coffee); perfect for evening downtime; just right for your commute on the subway, or while waiting at the doctor’s office or sitting in a restaurant—anytime you need a mental pick-me-up. The book’s chunky format, which works so well for puzzle books like The Original Sudoku series, fits easily into a purse or bag. An answer key is included at the back of the book.

What could be more appealing to Mensa members--or anyone who enjoys a good challenge--than a cunning test of intelligence and logic? That's exactly what these 250 puzzles provide. The trick to kakuro is in making it all add up: the game begins with a grid that looks like a crossword, except that some squares contain small numbers in the corner. Fill in all the empty boxes using the numbers 1 to 9 without repeats so that the sum of each horizontal set of digits equals the number in the black triangle to its left, and the sum of each vertical set of digits equals the number in the triangle above it. The kakuro puzzles start out simple...and get more difficult as the book progresses.