Answer:
The main difference between us and zombies
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?
Each morning I appear to lie at your feet, all day I follow no matter how fast you run. Yet I nearly perish in the midday sun.
The land was white the seed was black. It'll take a good scholar to riddle me that.
What can be seen but not touched?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.