A Game A Day « http://www.agameaday.com | | A puzzle site featuring a new puzzle format each weekday for each month. puzzles are fun , educational , entertaining and are also printable. |
A Puzzlemakers Site « http://www.puzzlemakers.net | | Puzzles of all descriptions. |
Able2Know « http://able2know.com/forums/viewforum.php?f=8 | | Message board of user submitted riddles and brain teasers. |
Abnorm's Conundrums « http://www.angelfire.com/oh/abnorm/ | | Easy , medium and difficult brain teasers without answers. |
All-Star Puzzles: Logic Problems « http://www.allstarpuzzles.com/logic/ | | Collection of logic problems to solve. printable. |
Archimedes' Laboratory « http://www.archimedes-lab.org | | Recreational mathematics including puzzles to make and solve , tessellations , geometric puzzles , optical illusions , and curiosities. |
Bill's Brain Teasers « http://www.billsgames.com/brain-teasers/ | | A collection of visual and linguistic riddles. |
Brain Teaser World « http://www.brainteaser-world.com/ | | Offers riddles , puzzles , optical illusions , and magic tricks. |
Brain Teasers « http://brainden.com/ | | Brain teasers , riddles , logic puzzles and problems , paradoxes , optical illusions , iq tests and logical games. |
BrainBall « http://brainball.playwithyourmind.com/ | | A daily brain puzzle with 10 different tasks and a variety of statistics on your performance. |
BrainBashers « http://www.brainbashers.com/ | | Brain teasers , puzzles , riddles , games and optical illusions. |
BrainBoggled. com « http://www.brainboggled.com/ | | A collection of math , logic , and word puzzles. |