Optical illusions are visuals that test your vision and observation skills.
The beauty of optical illusions is that they hold the user's attention for a short length of time, giving the brain workout.
It has been proposed that regular practice of optical illusions provides a beneficial kind of mental training and improves intelligence.
Do you want to get smarter every day?
The image above displays a desert setting with a small bed of rocks and a lizard hiding amid the rocks.
To accomplish the task, find the lizard in the desert setting within 5 seconds.
It will put your observation abilities to the test, as well as help you improve your focus.
Have you spotted the lizard yet?
The lizard can be seen in the center of the shot, and it has merged in well with the arid environment. It can be distinguished by a red mark on its body.
Beyoncé marks big milestone after 'Savage' triumph.