Answer:
Sends paper without using the post office.
Defends your noggin from the hard pavement
It can be grown in your yard or bought at the store and is given for love when less is more?
What has a head yet it never weeps, has a bed but never sleeps, can run but can not walks, and has a bank but not a cent to its name?
What has one hand longer than the other, and goes on all day and night?
Mountains will crumble and temples will fall. And no man can survive its endless call.