Brain training :   challenging puzzles to stimulate your gray cells. 

 - 1st ed. 
 - London :   Carlton,   2010. 
 - 175 p.  20 cm. 
<br/><br/> The puzzles in this book previously appeared in Mensa Puzzle Challenges and Mensa Puzzle challanges 
<br/><br/><label>ISBN: </label>9781847327246 (pbk.) 
<br/><br/><label>Subjects--Index Terms: </label>Puzzles;  Mental efficiency -- Problems, exercises, etc; Mensa Brain Training . 
<br/><br/><label>Dewey Class. No.: </label>793.73  / CAR