Are you up for challenge? Think you've got what it takes to beat this optical illusion challenge? Among these charming pitbulls lies a hidden scooter, expertly concealed to test your brain's ...

This optical illusion isn't just a fun challenge ... others are zipping around on scooters, and some are gliding gracefully ...

Optical illusions measure your attention to detail and your ability to distinguish subtle differences in shapes and colours. Individuals with higher IQs often perform better in these challenges ...