In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into ...

Henry Ernest Dudeney posed the famous dissection problem of transforming a triangle into a square by cutting it into as few pieces as possible. In a new study, researchers have finally proved that the ...

They can be about anything from solving a math problem to figuring out a puzzle. For example, let's say you need to count how many triangles are in a picture. To solve this, first, look at the ...

Is This Seat Taken? is a slow-paced, calming, and cute puzzle game that involves finding the best place to put little anthropomorphic shapes (triangles and squares, with eyes, han ...

The students examined the numbers but couldn’t figure it out immediately. The professor smiled and gave them a hint: “Look at the pattern in how the numbers increase. Focus on the differences ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

Whether you want the finished product to reflect your favorite franchise, game, artwork, or a piece of beautiful scenery, there are puzzles for ... to focus more on the number of pieces and ...

These challenging puzzles not only stimulate the mind but also offer a sense of satisfaction when cracked. Whether you’re a fan of number games or just curious about the latest trending puzzles ...

Enjoy the Mars Triangle while it still lasts, for after mid-March it will be no more. We're now just past the midpoint of astronomical winter — that moment marking the midway point between ...

AI’s here to zap the clutter and boost your nest egg. Experts say it’s a game-changer—but is it trusty or tricky?

In one such tricky brainteaser by optics4kids.org, readers are challenged to find the number of triangles in the picture below. The image consists of three black circles, each missing a triangular ...