Squigly Squigly's Brain Teasers

Question:

What does man love more than life,
fear more then death or mortal strife,
what the poor have the rich require,
and all contented men desire.
What misers spend and spendthrifts save
and all men carry to the grave?

Answer:

Nothing.

Try another Brain Teaser:

A boy was rushed to the hospital emergency room. The ER doctor saw the boy and said, "I cannot operate on this boy. He is my son." But the doctor was not the boy's father. How could that be?