IQ Science

July 30, 2006 -- From Salim, a reader, from Washington D.C, who is affiliated with the site.

Contains information about the IQ, and things related to it, including a test, and high intelligence societies …

Brain Training

July 30, 2006 -- From Salim, a reader, from D.C, who is affiliated with the site.

Contain Exercises for the brain, simply yet effective, and also include an IQ test, reflex test, and more.

Kids Puzzler

July 22, 2006 -- From Siva, a parent, from Bangalore, India, who is affiliated with the site.

A puzzles site for kids with lots of crossword puzzles, sliding puzzles, word search puzzles, sudoku, jigsaw puzzles.

Thinking Games

July 16, 2006 -- From Paulo Matoso, a reader, from USA, who is not affiliated with the site.

Forum community about online thinking games. Covers brain teasers, jigsaw and crossword puzzles, Supaplex, Klotski, Lemmings, and other critical thinking games.

BrainBashers

May 5, 2006 -- From Kevin Stone, a reader from Stoke, UK, who is affiliated with the site

A large collection of brain teasers, puzzles and riddles. The site is updated with illusions and games regularly and has five new puzzles added each week.

RiddleNut.com

November 29, 2000 -- From Nick Amodio, a reader from Ohio who is affiliated with the site

The web’s largest online archive of riddles for RiddleNuts. Surf through more than 650 family friendly riddles or join the Daily Riddle email list to get a brainteaser in your mail box.