Answer:
The main difference between us and zombies
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?
A beautiful succession of sounds.
When this is found in a road you are forced to make a decision.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.