A tricky visual puzzle is doing the rounds online, and rumor has it that only the smartest 3 percent of social media users are able to spot the odd one out.
The puzzle, originally shared on Wake Up Your Mind, comprises three parts and gets progressively harder, testing both one’s observation skills and powers of concentration. If your instinct tells you that you might be good at this, then consider setting yourself an extra challenge: put 10 seconds on the clock for each round!