A new math puzzle designed to challenge readers of all ages is coming to the Daily Press. David Genter, a puzzle developer ...
An old calculator uses a seven-segment display, in which numerals are represented by different patterns of vertical and horizontal line segments. But the device is faulty and no longer shows any ...
Jigsaw Puzzles are tiling puzzles that require the assembly of some irregularly shaped, interlocking pieces of card in a regular and perfect shape that forms a complete picture. Jigsaw Puzzles are a ...