Answer:
Twelve pears hanging high, twelve men passing by. Each took a pear and left eleven hanging there. How can this be?
A man wants to buy a used car. He finds a beautiful Buick for $9500, but he buys it without paying a dime. How did he manage this?
On which day of the year do fewest people die?
If there are three apples and you take away two, how many do you have?
When is homework not homework?
What is always coming but never arrives?