Brain teasers are excellent puzzle games for providing the brain with an effective mental workout. This math puzzle is a type ...

Google's Doodle on 12 November celebrates the quadratic equation, a key mathematical formula. The animated artwork ...

Think you have hawk eyes? Then find the hidden number expertly placed in this 3D optical illusion rug image in 7 seconds. Only 1% with hawk-eye vision and intelligence can do so. Are you one of those ...