India, Sept. 18 -- Optical illusions have become the new go-to for puzzle lovers online because they not only entertain but also provide a dopamine hit once you complete the challenge. These optical illusions also show how easily our brains are tricked by patterns.

From 'is it a blue or gold dress' to hidden animal challenges, these visual tricks tap into universal curiosity. They spread rapidly online because they combine playfulness with a touch of science, offering both entertainment and a glimpse into how our minds work.

In the latest viral optical illusion, players have to find the odd emoji out from a grid of heart emojis. What looks like a screen full of red heart emojis turned out to be a cleverly designed puzzle with one impost...