India, Oct. 24 -- Optical illusions are one of the best ways to put your eyes and brain to the test. From confusing images to tricky number games and puzzles, these viral games often leave people scratching their heads and force them to think out of the box. An all-new grid challenge has taken the internet by storm, asking players to spot the odd number out.

In today's optical illusion challenge, all players get to witness are 14 columns and 10 rows featuring the number '8'. However, hidden somewhere in plain sight is the number '6'. While it might appear as an easy and simple task, you only get 5 seconds to crack this one.

Gaining significant attention on social media, this viral challenge has left even the pro players struggling to sp...