New Delhi, July 16 -- Think you have sharp eyes? Here is your chance to prove it. A new optical illusion challenge is making the rounds online, and it is much difficult than most people expect. At first glance, the image looks perfectly normal. But don't trust the first impression. Hidden within the scene are eight mistakes, some subtle, others right in front of you. Your task? Find them all in just 10 seconds.

It sounds easy enough-until you try it. The errors are placed in ways that mess with your brain's pattern recognition. Some are clearly out of place. Others blend in so well you won't even notice them until someone points them out.

Here is how to play:

Take a look at the image carefully.

You should also start a 10-second timer....