The second riddle gives me a headache...I'ma gonna say...
!
BTW No one, He was just saying that Death is the opposite of life there for it wouldn't be the answer since the answer is something living.
--Edit--
Also Metal Bunny, that first riddle...never heard it in that form... The one I have heard went like,
I am greater than God,
More evil than the Devil,
The Rich want me,
The Poor have me,
And if you eat me you will die,
What am I?
That's the version I've seen before.