These intelligence tests—created by two Mensa puzzle editors—range from the merely challenging to the downright diabolical! With regular practice, they're a great way to increase brainpower, improve your performance, and raise IQ scores by a few vital points. Featuring more than 300 questions (plus scoring chart and answers), the quizzes cover a range of skills, from verbal and mathematical to general knowledge and logic. Some examples are "culture-free," with completely diagrammatic problems that anyone can use to work out the mind. Find the "odd word out" in a group, pick out synonyms, solve anagrams, figure out the next shape in a sequence, and complete a matrix of circles, squares, and triangles. They'll stretch your intellect to its limits!

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