"This collection of various types of IQ puzzles is divided into three levels of increasing difficulty, with the final level intended for the expert and as fiend

Put your logic skills to the test with this mind-bending collection of number puzzles, published in association with The Turing Trust. Alan Turing was a World W

Published in association with the Turing Trust, this challenging collection of over 120 brain training puzzles will put your problem-solving skills to the test.

Published in association with the Turing Trust, this challenging collection of more than 120 puzzles will put your logic skills to the test. Follow in the foots

Enjoyable mental exercises to help boost performance on IQ tests This engaging book offers readers the ultimate in calisthenics for the brain. Using the same fu