You set off with an empty bus, and 4 people get on at the first stop along the way.
At the second stop, two people get off and 6 get on.
At the third stop, 5 people get off and 4 get on.
What colour are the bus driver's eyes?
You are the driver. What colour are your eyes?
This exercise is a little silly, but it helps us understand how our brain tries to process all the information it has, such as the passenger numbers, and may become distracted from the key point.
Often the distinction between useful information and distractions is unclear, and we may reason in the wrong direction.
