New Delhi, June 27 -- If you pride yourself on your observation skills and eagle-eyed vision, then today's viral optical illusion is perfect for you. This new brain teaser has taken the internet by storm. Users are challenged to spot one odd word hidden in a sea of identical terms. And here's the catch: you only have 10 seconds to do it.

The illusion is simple in concept but surprisingly tricky. The image shows a grid full of the word 'PEN' repeated multiple times. However, among the dozens of PENs, one word is not like the others. Can you spot the odd one before the countdown ends?

You will need to pay close attention. At first glance, the image appears to be nothing more than a repetitive block of identical words. But look again-and l...