Carter P.J., Russel K.A. Baffling Brain Teasers (Test Your Intelligence)

Ward Lock Ltd, 1992. — 128 pages.A follow-up title to Alan Wareham's "Brain Teasers", with over 100 brain-teasing questions graded from easy to very difficult. The authors have also written "Take the IQ Test" and "Take the IQ Challenge" series.Mensa is best described as a social club. To join one has first to sit a supervised intelligence test and obtain an IQ score of 148 or over on the Cattell scale, which will put the applicant in the top 2 per cent of the population. Mensa currently has 38,000 members in the UK and almost 100,000 throughout the world.
Mensa is the Latin word for table, and the word implies a round table society in which every member is of equal standing.
The puzzles in this book have been arranged into sections of similar types, and a star rating has been allocated to each puzzle to enable you to monitor your performance throughout.