How to Excel at IQ Tests is a complete practical course in how to boost your IQ score. It starts by explaining exactly what IQ is and how it is measured. Then m

A group of fun and very challenging number puzzles to test one's abilities with solving math and logic problems.

Over 200 puzzles that will examine your intelligence and exercise your brain in order to help prepare for an IQ test.

"Know thyself," said the sage - and this may be the most difficult advice of all. The scientific basis of psychology is often debated, with some arguing that it