Perplexing Lateral Thinking Puzzles: Scholastic Edition

The Little Giant Encyclopedia of Puzzles

Word Find Puzzles No 3

Covert Warrior: Fighting the Cia's Secret War in Southeast Asia and China, 1965-1967 : The Vietnam War Memoir of Warner Smith

Workout for a Balanced Brain: Exercises, Puzzles & Games to Sharpen Both Sides of Your Brain

Robert Ludlum's The Hades Factor : A Covert-One Novel (A Covert-One Novel)

Challenging Lateral Thinking Puzzles

More math puzzles and games

Secret Codes for Kids (Mensa)

The Duke's Covert Mission (The Carradignes: A Royal Mystery) (Harlequin Intrigue Series, No. 666)