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 ...

Brain teasers are a fun and fascinating way to challenge your mind and sharpen your problem-solving skills. Often requiring out-of-the-box thinking, they push your brain into a different gear. A ...

The puzzle seems simple and harmless at first. You look at a geometric drawing and try to count how many triangles are hidden within it. Some people quickly say eight or ten. Others stare longer and ...

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 ...

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 ...