From tangrams to cryptograms, exercise your mind with clever puzzles and brainteasers. What new puzzles would you like to try?
FeaturedWhat'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 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
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
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
Some puzzle games can be addicting. Learn about 5 of the most addicting puzzle games out there. See more »
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
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
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
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
Acrostic puzzles are a challenging alternative to crossword puzzles. Test your knowledge with the acrostic puzzles quiz. See more »
Solve This! The Sliding Puzzle Quiz
Sliding puzzles have challenged puzzle fans for centuries. Test your knowledge of the sliding puzzle, from the original 15 square to more complex versions. See more »
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