India, Aug. 1 -- Optical illusions are fun little tricks our eyes and brain play on us. Sometimes, what we see is not really what is there, and that is what makes these puzzles interesting. They mess with how the brain understands things like shape, color, and space. Here is a fun optical illusion puzzle. Can you find the hidden pair of glasses on the orangutan? But you only have 7 seconds.

A new image is now going viral online, and it is leaving a lot of folks scratching their heads. It shows a sleeping orangutan in the middle of a green forest. But somewhere in this peaceful scene, there is a pair of glasses hidden. The challenge is to find it in just 7 seconds.

At first glance, it just seems like a quiet forest scene with a relaxed a...