Numerous studies have shown that the frequency with which you challenge your brain with puzzles and optical illusions correlates with your ability to become smarter.
You can be considered intelligent and perceptive if you find the Odd One Out in less than 5 seconds, or if it takes you longer but you eventually find it. Have you tracked down the elusive Odd One Out?

It’s okay if you can’t find the solution; we’ll provide it for you. If you can’t find the Odd One Out within 5 seconds, you need to work on your observation skills. Similar optical illusions will help you with this. If optical illusion makes you feel better, let us have some more fun by switching to a variety of other optical illusion articles.