Answer:
A town has only two barbers. One of the barbers has a nice, tidy haircut, and the other has a shaggy, messy haircut. Which barber should you go to?
Three doctors said that Bill was their brother. Bill said he had no brothers. Who was lying?
How can you throw a ball 20 meters, and have it come back to you without hitting anything?
How can you add eight 6s together so that the total adds up to 750?
What can I not be tomorrow?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?