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Math is a subject which is said to be a kind of a brain tester. There are so many math puzzles and riddles available that sharpen your logical thinking. You will find some of them described in here.[FONT=Times New Roman]A puzzle is a problem that challenges one's ability to think out of the box and come up with original solutions. Puzzles can be thought provoking and entertaining. In recent times, puzzles have become the base for mathematical research. Arithmetic and logical puzzles have served this purpose.