I love trick questions. One of my favorites, which needs to be told, goes like this:
An empty bus (except for the driver) pulls up to the first stop. Two people get on. At the next stop, six people get on. Then eight peolpe get on, and two get off. Then seven people get on. At the next stop, three get on, and five get off. At the next stop, Three get on and one gets off.
Question: How many stops did it make?
Very rare than anyone gets the right answer.
Well seems the trick there is to not accidently count an instance of passengers getting on and off as a stop. So if I counted carefully enough there were four mentioned. But then a pedantic ad hoc interpretation might be that there may be other unmentioned stops so that the answer is at least four. I kind of like challenging logic problems more.
Looks like 4 stops.