Answer:
I have a head but never weeps. I have a bed but never sleeps. I can run but never walks. I have a bank but no money. What am I?
small land in water.
I'm not a bird but I can fly through the sky. I'm not a river but I'm full of water.
The warmer I am the fresher I am.
If you lose me you may cause people around you to lose me too.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.