This book consists of 200 difficult puzzles of a variety of different types focussing on maths and numerical reasoning. Questions include mathematical grid puzzles such as killer Sudoku and numerical crosswords, as well as maths-based logic and pattern puzzles. Puzzle artworks and full-colour illustrations are included throughout.

A series of logic problems that have been created by Mensans, with the aim of specifically improving various aspects of logical thought and lateral thinking through puzzle solving and problem confrontation.

Test your wits with this all-new collection of mindbusters from Mensa, the high-IQ society. Master puzzler Abbie Salny provides a fun brainteaser, logic twister, math mystery, or word game for every day of the year. Whether you're mathematically, verbally, or visually inclined, you're sure to find twelve months' worth of exciting challenges inside.Included with each puzzle's solution is the percentage of Mensa members who answered it correctly, so you can score yourself against the people with the high IQs. With a puzzle for every date and an extra for leap years, you can match wits with Mensa 366 days out of every year! Here are a couple of sample questions, and the percentage of Mensans who answered correctly: February 24: Can you make three words from the letters LGNEA? (100%) May 14: You have fifty coins that total 1.00. If you lose one coin, what is the chance that it was a quarter? (15%)

Give your brain a workout on the type of brainteasers that challenge the best solvers at the World Puzzle Championships. They're tough, but fun, and the feeling of satisfaction you get when you succeed is simply unbeatable. Some of the puzzles are oldies but goodies, like battleships--and its many variants--where you search for a fleet hidden within a grid. In "Eminent Domain," try to determine which blanks cells are owned by the numbered ones. For "Hex Loops," locate a path that travels through adjacent hexagons: the trick is, it has to end where it started, and the lines can't touch or cross. From Snaky Tiles to Spiral Galaxies, these Mensa-level conundrums will get your mind in shape.

A colorful collection of the most difficult math tests on the market, compiled by Mensa puzzle setters.

IQ tests are routinely encountered in recruitment for various industries, including for jobs in the government, armed forces, and education as well as industry and commerce. Competition is fierce and employers are determined to cut the weak from the strong so it is essential for candidates to be prepared. Ultimate IQ Tests is the biggest book of IQ practice tests available. Written and compiled by experts in IQ testing and brain puzzles, it contains 1000 practice questions organized into 25 tests, with a simple guide to assessing individual performance. With a brand new test in this edition, designed to be more challenging than the others so you can track progress, this is the best one-stop resource to mind puzzles. Working through the questions will help you to improve your vocabulary and develop powers of calculation and logical reasoning. From the best-selling Ultimate series, Ultimate IQ Tests is an invaluable resource if you have to take an IQ test, but it's also great fun if you like to stretch your mind for your own entertainment - and boost your brain power. About the Ultimate series... The Ultimate series contains practical advice on essential job search skills to give you the best chance of getting the job you want. Taking you from your job search to completing an interview, it includes guidance on CV or résumé and cover letter writing, practice questions for passing aptitude, psychometric and other employment tests, and reliable advice for interviewing.

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.