Answer:
Twelve pears hanging high, twelve men passing by. Each took a pear and left eleven hanging there. How can this be?
You draw a line. Without touching it, how do you make the line longer?
What was the longest river in the world before the Amazon River was discovered?
An archaeologist digs up two perfectly preserved bodies. He immediately identifies them as Adam and Eve. How can he tell they are Adam and Eve?
The more that there is of this, the less you see. What is it?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?