The World's Biggest Book of Brainteasers & Logic Puzzles
by Norman D. Willis,Paul Sloane,Des MacHale,Michael A. DiSpezio,Kurt Smith,Martin Gardener,Tim Sole,Rod Marshall,Bea Kimble
ISBN 13: 9781402733727
Format: Paperback (704 pages) Publisher: Sterling Published: 03 May 2007
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YOU'D BETTER BE REALLY SMART BRAIN (Official Mensa Puzzle Book)
by Tim Sole,Rod Marshall
ISBN 13: 9781402705434
Format: Paperback (96 pages) Publisher: Sterling Published: 23 Jul 2004