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Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. Lessons are written with the struggling student in mind, and stress the practicalites over the technicalities. Links and other resources als...

Printable brain teasers for kids and adults, riddles, logic puzzles, paradoxes, optical illusions, IQ tests, free brain games, lawyer jokes and other challenges for your mind.

Laugh Like A Hyena as You Win Every Game - Word Solver, Word Builder, Strategy Tips For Hangman, Hanging With Friends, Scrabble, and Crossword Puzzles

Scientific physics forums for professionals and students to discuss serious issues and topics regarding physics in theory, practice, study and reality. Students can also find help for homework and career perspectives

The Math Forum is the comprehensive resource for math education on the Internet. Some features include a K-12 math expert help service, an extensive database of math sites, online resources for teaching and learning math, plus much more.

This is a series of links to pages, which help you solve our (and other) puzzle caches. As a first tip, have a look at the solving puzzles section, which gives an overview of the whole thing and...

NMSR celebrates real science, and opposes pseudoscience

Mind Exercise Puzzles: Puzzles to stimulate and keep your brain active, both traditional, picture and other brainteasing logic puzzles on offer free to play...