If you can spot the flat tyre amongst the wheels within 11 seconds, then you can claim a high IQ and 20/20 vision.
That might get you to the solution eventually - but it would be very difficult to check every one within the time limit.
Engaging in activities like solving optical illusions and brainteasers can have many cognitive benefits as it can stimulate various brain regions.
Soon it becomes difficult to focus on any of the wheels at all - let alone identify the flat tyre.
This puzzle is particularly difficult because it doubles up as an optical illusion.
