These rely on how the brain subconsciously interprets information. Examples include illusions like the Müller-Lyer illusion, ...

There are 3 differences between the couple pictures. Only the most observant eyes can spot the 3 differences in 29 seconds.

Some brain teasers use words, like riddles while others use numbers or logic. But one of the most popular kinds is the "spot ...

There are 4 differences between the guy at the desk pictures. Only those readers with excellent visual acuity can find the 4 ...

Time changes everything—or does it? Some moments wear the years like battle scars, others barely flinch.In these 15 pairs of ...

Whether pedigree or mixed breed, some dogs can look very similar – so let’s take a look at some examples of dog breed ...