Optical illusions are tricky images that use colours, lights and different patterns to trick human minds. Illusions can be caused by a variety of factors, including the way the brain interprets images ...

India, Jan. 20 -- This challenging problem is presented as an optical illusion to test how well and how quickly your eyes can identify different numbers, as well as crucial variations in patterns.

From budget-friendly and foldable options to premium smart running machines, these are the best treadmills to help you hit your fitness goals this January. When you purchase through links on our site, ...