India, Sept. 27 -- Optical illusions are the new social media favorite, with many users gravitating towards these visual puzzles. The internet has become a repository for optical illusions, with several users challenging each other. In today's viral game, players get yet another exercise of finding the odd word out in the grid of a similar-looking word.

The challenge, this time, is deceptively simple: find the word 'ball' hidden in a grid full of the word 'bill'. At first glance, the puzzle looks like a repetition of the same word. But a closer inspection reveals a subtle difference. The catch is you only get 10 seconds to crack this one.

The trick to solving this optical illusion in under 10 seconds is to look at each word carefully, e...