These mental workouts include demanding word games, mathematical bell-ringers, prefix puzzlers, and algebraic twisters guaranteed to rile your brain, and make you feel like a genius when you get the right answer.

The tests are intended as valuable practice for readers who may have to take an IQ test in the future, and they will also help to increase your vocabulary and to develop your powers of calculation and logical reasoning. The questions are challenging, and deliberately so, as this is the only way to boost your performance and increase your brainpower.

The book consists of ten separate tests for you to attempt, each of 40 questions. Each test is of approximately the same degree of difficulty. A time limit of 90 minutes is allowed for each test. The correct answers are given at the end of the book, and you should award yourself one point for each correct answer.

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