An ancient Chinese math puzzle shows how to win at cards, horse races and gerrymandering A stratagem that dates back two ...

Have you played the puzzle game Tangram? I remember, as a child, being fascinated by how just seven simple wooden triangles and other shapes could offer endless entertainment. Unlike LEGO, the Tangram ...

In 1974, a geneticist named Marsha Jean Falco devised an ingenious research tool to help determine whether epilepsy in dogs was an inherited trait. She drew a series of symbols on index cards, where ...

The third volume of the author's puzzles from Scientific American was published under title: New mathematical diversions from Scientific American. siris_sil_26564 ...

“A fox, a wildcat and a dog go through a customs-post. They are taxed 111 cash. The dog says to the wildcat, and the wildcat says to the fox, ‘Your skin is worth twice mine; you should pay twice as ...

An old numerical problem that keeps reappearing in puzzle books as though it had never been analyzed before is the problem of inserting mathematical signs wherever ...

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

Our recent suite of puzzles featured the humble double-pan balance scale, historically a symbol of commerce and government, art and science. Balance scales are also popular in recreational mathematics ...