Each puzzle encourages pattern recognition, vocabulary skills, and strategic thinking. Puzzle #609, released on February 9, ...

As energy resources grow scarcer and electricity costs rise, managing energy consumption has become necessary for users.

Whether it's hidden images, ambiguous figures, or shifting patterns, optical illusions provide an intriguing mental workout. ...

Today’s tricky optical illusion challenges users to find the number 28 hidden among identical 29s and 92s. This brain teaser tests attention to detail and cognitive skills. Can you spot it in under 10 ...

China is on a clear course to become the world’s first “electrostate" — and is likely to eclipse the U.S. in atomic power in ...