For over a century, a simple yet tricky math problem had continued to baffle experts. Mathematicians struggled to find the fewest number of pieces needed to cut an equilateral triangle and rearrange ...

Puzzle game Yankai's Triangle was named Apple's App of the Week, making it free to download for the next seven days. This is the first time the game has been made available for free since it was ...

A puzzle lover is selling his Bermuda Triangle Jigsaw Puzzles series because he is leaving the Island. Aardvark co-owner John Elsegood designed triangular puzzles, which depict the Dockyard Clock ...

THE CRAZE for mind-boggling brainteasers is still going strong and this latest one is pretty tricky. The puzzling image shows three shapes, one upside down triangle and second triangle, the right way ...

Jack Lyons of Wilmington hands out triangle-shaped business cards. Last Christmas, he baked triangular cookies for the rest of his family. He wore a triangle-shaped hat to the 2009 Sudoku National ...

We know all four shapes are the same before and after, but we assumed that the large right triangle also stayed the same size and shape. This assumption was our error! It turns out that the “before” ...