At first glance, most people see 4 or 5 numbers in this scribbled drawing. But look very carefully.
The correct answer is 6.
You can see: 6, 8, 2, 4, 1 and the full number 821 formed in the middle.
This kind of visual illusion tricks your brain by overlapping the lines, making it hard to separate the individual digits. These puzzles are so popular because they show how easily our eyes miss things right in front of us.
Did you get 6? Or did you see more/less? Drop your answer in the comments

