There are several ways to test your brain and challenge your cognitive skills. Brain teasers, puzzles, 'spot the difference' tests can all intrigue your mind and bring out the best in you in terms of your intelligence. However, have you tried solving an optical illusion? Optical illusions are puzzles that test your visual perception. It helps you improve your concentration and observation skills. What it depicts is often not the reality and you must fish for what the illusion really stands for. This is what makes it so fun and exciting too.
One such optical illusion is the image above. You can see a part of a desert with a small bed of tiny rocks. Among these gravels a lizard is hiding. You need to spot the reptile in 5 seconds or you lose! Can you do it in a limited time?
