In the era of scrolling and short attention spans, mental exercise was unimportant. But in today’s era, whether you are a ...

When looking for something to do to occupy your mind at home, why not try some online puzzles? We love an old fashioned jigsaw, but the internet is a valuable resource for finding some engaging and ...

For anyone who is looking for the easiest brain games, here are 8 easiest logic/number puzzles in the world. Number and logical games have been a source of brain exercise and entertainment for ...

Crossword fan? Sudoku addict? Now you can play these games on SFGate. We're offering Timothy Parker's Crossword and classic Sudoku online, plus three more games: Hitori, Jumble Jong and Word Roundup.

This logic puzzle has been doing the rounds for some time. It’s called “The Bridge Riddle”, and this is how it goes: You are a young explorer on a remote island with three other people—a fellow lab ...

In my view, some of the most mind-boggling logic puzzles are those that present statements, some of which are true and some false, with the objective being to figure out where the truth of the matter ...

We are hardly ever consciously aware that we use logic to solve everyday problems. But what is logic? Is the logic used to prove theorems in mathematics the same kind that we use for our practical ...

At first glance, Sudoku, crosswords, and other puzzles might seem like simple pastimes—things people do to pass the time on a lazy afternoon. But for many, puzzles are more than just entertainment.