Are you ready to test your observation skills? In today’s puzzle series, you can see an inverted 49-number series. With this ...

Brain teasers challenge thinking beyond the obvious. They boost focus, creativity, and patience. Try to find the inverted "64" in a series of "94"s in 7 seconds. A brain teaser is a short, playful ...

A blood test that helps detect early signs of Alzheimer’s disease, when combined with measures of two major risk factors, identifies early brain changes with a 94% level of accuracy, researchers have ...