Leila and Sahar are attending a dinner party with four other couples. Each attendee knows their partner, but they may or may not know anyone else there. Before the five couples sit down to eat, anyone ...

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 ...

A new math puzzle designed to challenge readers of all ages is coming to the Daily Press. David Genter, a puzzle developer ...

Puzzle 1: You are given nine gold coins that look identical. You are told that one of them is fake, and that this coin weighs ...

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 ...

Brain teasers are fun little puzzles that make you think in different ways. They might look simple at first, but they often have a twist that surprises you. Solving them gives your brain a good ...

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 ...

I’ve been out of school for decades, and I don’t spend my days solving equations (I’m more of a word person). Still, I like to think I have a solid grip on basic math: I can usually gauge whether a ...