Approach this like a math puzzle —strategically and methodically. With each row containing six triangles, and a systematic ...

When counting squares in a grid, don’t stop at the smallest boxes; the bigger ones are hiding too. The rule is simple: In an n × n grid—where n is the number of squares both horizontally and ...

I’m on the road this week. Save for a couple of brief layovers, I’ve been doing a lot of driving. In light of this, I was inspired to feature a puzzle that could be solved without pen and paper. It ...

Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. Two puzzles are presented each week: the Riddler Express for those ...

If you were to list all the natural numbers from 1 to 1,000,000,000, which digit would you have to write least often and which would you have to write most often? Show puzzle solution First, we look ...

A difficult puzzle where readers must count the number of sheep is pulling the wool over people's eyes. The sleep deprived have used counting sheep as a way of helping them to nod off for decades. And ...

Eeny, meeny, miny, mo and the inconclusive history of counting-out rhymes. Thinking inside the boxes: a glimpse into the world of competitive crossword-puzzle solving. Around the world in school ...

Macgamestore.com and Hidden Objects has announced the release of The Count of Monte Cristo, a new casual puzzle game for the Mac. It costs $19.95, and a downloadable demo is available. The Count of ...

A new brain teaser has left people doubting their eyesight as they struggle to count the circles in this puzzle - as the obvious answer is not the correct one. It's officially 2024, and after many of ...