Answer:
What can travel around the world while staying in a corner?
If you are in Europe and one of your feet is in Germany while the other is in Belgium, then what country would you really be in?
Some are clean and some are dirty, but all are meant to get a chuckle. Most like it, some takes offense from it.
What kind of sandwich sinks to the bottom of the tub?
Why was the big cat disqualified from the race?
What made Cyclops quit teaching?