IQ test 1
Keeness of mind
Numerical ability
Verbal ability
Sharpen up your memory
Brain-teaser puzzles
3D thinking
IQ test 2.
The brain fitness workout : brain training puzzles to improve your memory, concentration, decision making skills and mental flexibility by Philip J. Carter. ISBN 9780749459833. Published by Kogan Page in 2010. Publication and catalogue information, links to buy online and reader comments.