India, Oct. 27 -- Optical illusion is a growing trend on the internet. Due to its simplicity, thousands of players have made these viral brain teasers their favorite pastime. The latest puzzle that has gained significant attention is asking players to spot a frog in the image within 10 seconds. If you like to put your observation skills to the test, then this one is surely for you.

At first glance, all you get to witness is a portion of a swimming pool with clear blue water. On the left, you can see the pool's edge, which is composed of a rough, textured material with some black stains or shadows. A tiny, circular object that resembles a dark blue or black disc is seen in the middle of the water. There is a little ripple effect on the wa...