Answer:
I am owned by the poor, the rich do not need me. If you eat me, you will die! What am I?
I am owned by every man, though my length differs. Their wives use me after getting married. What am I?
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I have a name written on me, but it isnβt my name. Men plant me, but I never grow. They look at me and see their future, rotting in my bloom.
I help engines spin and pants stay up.
I am owned by Old McDonald.