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Brain Puzzles is a book of teasers for kids to test and develop their reasoning, critical thinking and problem-solving skills as well as enhance me...

Here is a chance to improve your math, logic and reasoning skills. This is a set of 4 sudoku puzzle books that will help keep your mind sharp and h...

Puzzles are a book of teasers for kids to test and develop their reasoning, critical thinking and problem-solving skills as well as enhance memory ...