Tests like these are popular online, not just for the fun but ... People who spot it fast often have quick mental processing ...

An optical illusion IQ test online can quickly gauge how well your brain decodes visual clues under pressure, revealing ...

Studies have shown that people who excel in solving optical illusion puzzles often possess strong analytical skills and high ...

If you are able to spot the thief within the short time limit, it’s a sign of your sharp IQ, incredible observation skills, and quick thinking. These traits are often linked to high intelligence ...

Other websites contain an online IQ calculator that takes you through a mock IQ test. There are also downloadable ... explaining what IQ is about. A quick aside. Though the response says that ...