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Sudoku Extreme Volume 1 book contains total of 228 hard puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. This book was...
Extreme Brain Workout is a series of puzzles designed to engage the core parts of your brain that are responsible for verbal ability, logical thinking and even your IQ. Each group of puzzles progresses from...
Keep your brain in shape with these entertaining brainteasers!
Scientific research shows that your brain needs exercise just like the rest of your body. Solving simple, short challenges is an excellent way for...
Contained within this book are over one hundred fun brainteasers for children and adults alike. Covering subjects including numbers, words, logic problems and lateral thinking they are sure to have you scratching...
Making Everything Easier!
Pocket Edition
Brain Teasers for Dummies
Timothy E. Parker
Flex your memory muscle with a variety of puzzles in varying degrees of difficulty
Studies have shown that puzzles like Sudoku,...
The famous mathematical cat Penrose takes us on a trip though puzzleland, while sharing fascinating and challenging puzzles in this uniquely designed mini book. Each page's puzzle is introduced by our star Penrose...
In his new book, Raymond Smullyan, grand vizier of the logic puzzle, joins Scheherazade, a charming young woman of “fantastic logical ingenuity,” to give us 1001 hours of brain-teasing fun.
Scheherazade,...
In this entertaining and challenging new collection of logic puzzles, Raymond Smullyan—author of What Is the Name of This Book? And The Lady or the Tiger?—continues to delight and astonish us with his gift...
Ultimate IQ Tests is the biggest book of IQ practice tests available. Written and compiled by IQ-test experts it contains 1000 practice questions organized into 25 tests, with a simple guide to assessing individual...
The Brain Fitness Workout includes a wide range of puzzles and tests, including different sorts of IQ tests, brain teasers and puzzles involving words, numbers and shapes to boost your brain power and stretch...
If you're looking for fun ways to challenge yourself for hours, The Everything Brain Strain Book is for you! Over 400 puzzles, riddles, brain teasers, and more will test your IQ and improve your thinking and...
If you pride yourself on thinking outside the box, then you'll love The Everything Lateral Thinking Puzzles Book! With hundreds of fun and imaginative problems for avid puzzlers like you, this all-in-one guide...
Sudoku Fiendish Volume 4 book contains total of 228 very hard puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. This book...
Sudoku Extreme Volume 4 book contains total of 228 hard puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. This book was...
Sudoku Extreme Volume 3 book contains total of 228 hard puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. This book was...
Sudoku Extreme Volume 5 book contains total of 228 hard puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. This book was...
Sudoku Extreme Volume 2 book contains total of 228 hard puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. This book was...
Sudoku Puzzle Volume 5 book contains total of 228 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. Each individual puzzle...
Sudoku Puzzle Volume 4 book contains total of 228 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. Each individual puzzle...
Sudoku Puzzle Volume 3 book contains total of 228 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. Each individual puzzle...
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