Illusions are tricks that fool our brains. Our brains fill in gaps to make sense of what we see, which is called perception.
Optical illusion pictures are made to trick our perception. They’re simple tests to see how well our brains pay attention.
Scientists use these pictures to study how our brains see the world.
Doing puzzles with optical illusions might help you solve problems better and think in different ways.
Find Rat in 3 Seconds
Now, look at this picture. It looks like a man’s profile, but there’s something else to find.

Try to spot a rat in 3 seconds.
The picture with the answer is below!
Find Rat in 3 Seconds: Solution
If you look closely, you’ll see that the man’s hair is really a big rat.

