Puzzles

The Ladder Paradox is a famous thought experiment in special relativity that beautifully demonstrates the relativity of simultaneity for two observers. Also known as the barn-pole paradox, it is an interesting paradox in physics that is fun to study and easy to solve.

The Monty Hall Problem, featured in "Brooklyn Nine-Nine," is a famous puzzle about probability first posed in 1975. While not a paradox in the strictest sense, it is still a fun riddle to solve on lazy Sundays or in brainstorming sessions.

This article examines the Aristotle's Wheel paradox: Two points, one on the edge and one inside a wheel, travel at different speeds. The inner point has a smaller circumference, but, after one revolution, both the points have arrived at the same distance from where they started. How?

Science may be all facts, but perspective matters. Learn about a famous and interesting paradox about Achilles and the Tortoise, first proposed by ancient Greek philosopher Zeno.

What happens when crosswords and Sudoku puzzles are combined? We get Kakuro, a logic and mathematics puzzle.

In 1979, a publishing sensation sent thousands of people on a treasure hunt in Britain.

Do you find 500- or 1,000-piece jigsaw puzzles difficult? Here are some tips and tricks to help you out.

The first crossword appeared in 1913 in The New York Post and ushered in an era of frustration for morning newspaper readers.

Riddles can be great pastimes, funny ways to trick your friends and effective opportunities to broaden your mind. Listed in this article are the top ten best riddles, along with an explanation of their answers for those that prove too tricky.

Test your brainpower by trying to solve these 20 lateral thinking puzzles. They will have you scratching your head and thinking way outside of the box!

Word search puzzles are great fun for many people, but they can sometimes be quite challenging. Presented here are a few strategies that can help find all those words.

Solving jigsaw puzzles is an entertaining and absorbing activity for children and adults alike. It may have other benefits in addition to being enjoyable.

Did you know that there are more types of sudoku than just the standard 9x9 grid you're used to? Learn about the different types available and test out your logic skills.

Are you only a few algorithms short of fully solving the Rubik's Cube? Here is a full and detailed list of seven necessary algorithms to help you when you are stuck in specific situations.

Impress your friends by solving a Rubik's Cube easily. This method works for standard 3x3x3 Rubik's Cubes.

This article includes resources, hints, and solutions for an extremely tough riddle!

Impress your friends and yourself by solving a 2x2x2 Rubik's Cube quickly. This guide shows you how.

An easy to use, step-by-step tutorial for solving a Rubik's Cube for beginners, with pictures and videos.

If you are confident in solving easy Sudoku puzzles, you are probably ready to learn techniques that will prepare you for other levels of Sudoku: medium, hard, and even expert. Check out these tips, which include step-by-step videos demonstrating how to solve hard Sudoku and expert-level puzzles.

Word search puzzles are an entertaining pastime, but creating personalized seek-and-find puzzles can be even more fun.

For your entertainment, here is one of the best logic puzzles ever. While the answer is given below, give yourself the chance to try hard (for days?) to find the answer yourself. No peeking!

Quick steps to learn how to build any jigsaw puzzle, no matter the number of pieces.

Exercise your brain and develop different and more flexible ways of thinking with these fun riddles!

Jigsaw puzzles are a fun and relatively inexpensive hobby that is also good for your brain! They build great spatial reasoning and logic skills. They also make a wonderful family activity, especially on long winter nights.