New Delhi, April 27 -- Visual illusions are fascinating phenomena that trick our brains into seeing something that isn't actually there. In the past, people often thought these illusions were caused by magic or supernatural forces. However, scientists later discovered that they occur because of the way our brains process what we see. Visual illusions are often created by cleverly blending objects, colours, and shapes to make hidden details appear or disappear.

So, how sharp are your eyes? Here's a challenge for you: Can you spot the third cat in this image within 7 seconds?

In this visual illusion, there are two cats in the foreground near a washbasin. But, there's also a third cat hidden somewhere in the picture - and your task is to f...