Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Optical Illusion: We are back with another one of our fun optical illusions, and this time, it’s a colourful one! Take a look at the picture given below, the image is of a board full of some colours ...