Collection of number puzzles. There are logic problems, mathematical puzzles, matrix problems, series puzzles, and many more besides.

"These visually unique braintwisters will put your puzzle-solving abilities to the ultimate test!"--Page 4 of cover.

Pit your wits against the number crunchers at Mensa Publications who have devised this demonic collection of over 200 mind-boggling number puzzles. These are fun puzzles, but they are by no means easy. If you can solve them, you'll be a candidate for Mensa -- the internationally famous high-IQ society!

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.

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.

Challenge yourself and excite your brain with this entertaining collection of new puzzles created in partnership with American Mensa and the AARP (American Association of Retired People). Young or old, your brain is essential to everything you do. You owe it to yourself not just to stay physically fit, but to stay mentally fit, too! This book of logic and number puzzles will help you do just that. A collaboration between Mensa and AARP, it is packed with brain teasers to exercise your mind and keep yourself sharp. Whether you are looking to practice your critical thinking skills or you just want to keep your mind sharp, these puzzles will provide a short workout for your cognitive lobes. In the end, you’ll have given your mind a problem-solving workout—and you’ll have had fun in the process. Challenge yourself and help keep your mind sharp with these brain-bending games and puzzles.

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.