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Title: Would You Rather...: Over 200 Absolutely Absurd Dilemmas to Ponder, Author: David Gomberg
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Would You Rather...: Over 200…
by David Gomberg, Justin Heimberg
eBook $8.99
Title: Neue Power fürs Gehirn: So nutzen Sie Ihr ganzes Potenzial, Author: Allen B. Bragdon
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Neue Power fürs Gehirn: So…
by Allen B. Bragdon, Leonard Fellows
eBook $30.13
Title: Math Crossword Puzzles, Author: Anna B. Napolitano
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Math Crossword Puzzles
by Anna B. Napolitano
eBook $7.99
Title: Der IQ-Test: Messen und trainieren Sie Ihre Brainpower, Author: Ken Russell
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Der IQ-Test: Messen und…
by Ken Russell, Philip Carter
eBook $21.91
Title: Worträtsel für Schlaumeier: Knifflige Sprach- und Wortlogeleien, Author: Andreas Findholt
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Worträtsel für Schlaumeier:…
by Andreas Findholt
eBook $10.26
Title: Increase Your Puzzle IQ: Tips and Tricks for Building Your Logic Power, Author: Marcel Danesi
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Increase Your Puzzle IQ: Tips…
by Marcel Danesi
eBook $15.99
Title: Rätselspaß für Frauen, Author: Nicole Wollscheid
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Rätselspaß für Frauen
by Nicole Wollscheid, Jana Sommer, Kim Havenith, Gabriele Woschech, Margit Wolters
eBook $11.63
Title: The Unending Mystery: A Journey through Labyrinths and Mazes, Author: David Willis McCullough
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The Unending Mystery: A…
by David Willis McCullough
eBook $14.99
Title: The Complete Idiot's Guide to Self-Testing Your IQ, Author: Jean Cirillo
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The Complete Idiot's Guide to…
by Jean Cirillo
Explore Series
eBook $7.99
Title: The Duck That Won the Lottery: 100 New Experiments for the Armchair Philosopher, Author: Julian Baggini
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The Duck That Won the Lottery:…
by Julian Baggini
eBook $4.99
Title: The Little Black Book of Brain Games (Brain Teasers): Challenge Your Mind with Games on the Go, Author: Suzanne Beilenson
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The Little Black Book of Brain…
by Suzanne Beilenson, Kerren Barbas Steckler (Illustrator)
Explore Series
eBook $3.95
Title: Protein Shakes for the Brain: 90 Games and Exercises to Work Your Mind's Muscle to the Max, Author: Michel Noir
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Protein Shakes for the Brain:…
by Michel Noir, Bernard Croisile
eBook $15.26
Title: Mrs. Perkins's Electric Quilt: And Other Intriguing Stories of Mathematical Physics, Author: Paul J. Nahin
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Mrs. Perkins's Electric Quilt:…
by Paul J. Nahin
eBook $29.95
Title: Train the Brain: Use It or Lose It, Author: Gareth Moore
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Train the Brain: Use It or…
by Gareth Moore
eBook $14.99
Title: Twiddlez: Riddles with a Twist, Author: Jerry E. Truchan
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Twiddlez: Riddles with a Twist
by Jerry E. Truchan
eBook $9.99
Title: Numbers Game, Author: Graham Perry
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Numbers Game
by Graham Perry
eBook $4.99
Title: Where in Maine: A Tour of Intriguing Places in the Pine Tree State, Author: Andrew Vietze
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Where in Maine: A Tour of…
by Andrew Vietze, Kevin Shields (Photographer)
eBook $23.99
Title: How to be a Brilliant Thinker: Exercise Your Mind and Find Creative Solutions, Author: Paul Sloane
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How to be a Brilliant Thinker:…
by Paul Sloane
eBook $21.99
Title: Beef Up Your Brain: The Big Book of 301 Brain-Building Exercises, Puzzles and Games!, Author: Michel Noir
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Beef Up Your Brain: The Big…
by Michel Noir
Explore Series
eBook $21.60
Title: Intelligence and How to Get It: Why Schools and Cultures Count, Author: Richard E. Nisbett
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Intelligence and How to Get It…
by Richard E. Nisbett
eBook $22.75

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