An unknot (also known as the trivial knot) can be drawn with any number of crossings. Any possible manipulation of a knot ...

Lateral-thinking puzzles fall into the latter category. Among the trickiest riddles out there, these brain games will give your noggin a serious workout. That’s because they’re not as clear-cut as ...

Hey there, ready to put your detective skills to the test? We've got 16 mind-bending riddles lined up that'll challenge your attention to hidden details. From tricky wordplay to optical illusions, ...

A new riddle is leaving people stumped as they try to do complex working out to come to the correct solution, but the answer ...

Think you've got the skills to solve a challenging Christmas riddle? Let's find out with these holiday-themed puzzlers. Santa and Mrs. Claus live in a one-story house at the North Pole. The walls and ...

When you need a vigorous, sweat-inducing brain workout, attempting to solve some hard riddles is a sure way to get those intellectual reps in. Putting your smarts to the test in this way is not for ...

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 ...

Mina has been playing video games for her whole life. She hails from Virginia in the USA, and she loves cozy games, FPSs, MMOs, and puzzle games. She lives in Richmond with her husband and her kitty, ...

Anyone looking for a deal on a new car will dig this story. A British man won a Fiat 500 after a mysterious phone call led him to keys buried in a field. The search was part of a treasure hunt held by ...