Answer:
I drift forever with the current and flows to your everyday life. I make living easy but I am good at killing people too.
I am owned by every man though my length differs. Their wives uses me after getting married.
Sing me to a baby about to go to sleep.
What do you call a three humped camel?
I have a name that's not mine and no one cares about me in their prime. People cry at my sight and lie by me all day and night.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.