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?
If he is paying $9500 he wouldn't use any dimes to pay for it.
There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?
None, because all the birds flew away after hearing the gun shot.
How many bananas can you eat if your stomach is empty?
Just one. After that, it’s not empty anymore.