Brain Bashers
This site contains tons of exciting brain teasers, puzzles, riddles, games and optical illusions! The choices are endless!
Prongo.com
In the mood for a fun collection of games that might just teach you something at the same time? Practice your math skills in games like Lemonade Larry and Batter's Up Baseball. Also includes age-specific games like checkers, connect the dots, matching, word and maze games.