Holidays bring celebration, rest and, for many families, long stretches of indoor time. For some, this means tabletop games quickly reappear on kitchen tables. Games provide opportunities for learning ...

Math puzzles are a fun way to keep your brain sharp and active. Just like physical exercise is good for your body, mental exercise is very important for your brain health– that’s why missing number ...

The rules of Sudoku dictate that every row, column and 3×3 bolded box in the completed grid must contain the digits 1 through 9 exactly once. A surprising fact emerges from these simple rules. In ...

An elementary-school math teacher silently paces his classroom in a pin-striped stockbroker shirt, his mouth full of braces. All around him, tiny students with pencils in hand struggle over puzzles at ...

A jigsaw puzzle company wants to design a new rectangular puzzle with a specific quirk: it must have the same number of edge pieces and interior pieces. Each piece begins as a square of the same size, ...

Add Yahoo as a preferred source to see more of our stories on Google. This article was originally published in The Conversation. Holidays bring celebration, rest and, for many families, long stretches ...