Answer:
What is as light as a feather, but not even the strongest man on earth can't hold it for more than 1 c)minute?
The day is their night and the night is their day, when I shout and they shout back I run away.
What is yours but only used by others?
Retired people want these to be large and birds want them to hatch.
What has two ends but no beginning?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.