There’s nothing quite like a maddening math problem, mind-bending optical illusion, or twisty logic puzzle to halt all productivity in the Popular Mechanics office. We’re curious people by nature, but ...

It involves just six matches, but this puzzle is anything but easy to solve. The Growing Triangles puzzle asks users to transform two triangles made from six matches into four triangles, by moving ...

Do you think you have sharp eyes and an even sharper brain? Here’s a fun challenge that will put your observation and problem-solving skills to the test! Optical illusions are not just fun to look at ...

Count the number of triangles in 5-Pointed Star: If you like to solve brain puzzles in your free time, then this brain teaser is meant for you! Brain teasers are a little more than puzzles, as these ...