Peg your IQ 

 - 1 volume  colour illustrations  in box 20 cm. x 6 cm. x 15 cm. 
<br/><br/><label>ISBN: </label>9781909720022 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic puzzles.
<br/><br/><label>Dewey Class. No.: </label>793.73