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From tangrams to cryptograms, exercise your mind with clever puzzles and brainteasers. What new puzzles would you like to try?

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What's the world's hardest puzzle?

Many puzzles can stump even the smartest players. But which head-scratcher is the hardest in the world?


How Escape Rooms Work

How Escape Rooms Work

Bring your friends and team up with total strangers to solve your way out of a room full of puzzles. Learn all about escape rooms at HowStuffWorks. See more »

How to Solve a Rubik's Cube

How to Solve a Rubik's Cube

How do you solve a Rubik's Cube? Learn the steps to solve a Rubik's Cube in this article from HowStuffWorks. See more »

How Towers of Hanoi Works

How Towers of Hanoi Works

Towers of Hanoi is made up of posts and discs that form a pyramid. Learn about the difficult puzzle game Towers of Hanoi. See more »

How 8 Queens Works

How 8 Queens Works

The 8 Queens problem will test your puzzle-solving mettle. Learn about the 8 Queens puzzle in this article. See more »

5 Addicting Puzzle Games

5 Addicting Puzzle Games

Some puzzle games can be addicting. Learn about 5 of the most addicting puzzle games out there. See more »

Futoshiki Puzzle Quiz

Futoshiki Puzzle Quiz

How much do you know about Futoshiki puzzles? Put on your thinking caps and work your way through our Futoshiki puzzle quiz. See more »

Solving a Futoshiki Puzzle

Solving a Futoshiki Puzzle

All it takes to solve a futoshiki puzzle is a little logic. Find out how to solve a futoshiki puzzle with this quick tutorial. See more »

The Ultimate Eye Puzzles Quiz

The Ultimate Eye Puzzles Quiz

Eye puzzles were very popular in the 1990s, but they have a surprisingly long history. Test your knowledge of eye puzzles with this quiz. See more »

Quiz: Kakuro Puzzles

Quiz: Kakuro Puzzles

Kakuro puzzles are a fun alternative to sudoku and crossword puzzles. Test your knowledge with this kakuro puzzles quiz. See more »

The Ultimate Brain-Knocking Acrostic Puzzle Quiz

The Ultimate Brain-Knocking Acrostic Puzzle Quiz

Acrostic puzzles are a challenging alternative to crossword puzzles. Test your knowledge with the acrostic puzzles quiz. See more »