Humans, and any other carnivore (or omnivore) that is higher up on the food chain than a cow is will eat a cow, either by killing and eating it, or scavenging a cow's carcass.
No.
There's no such thing as an "organic cow." A cow is a cow, regardless. She will eat what "normal" cows eat, which is defined in the related question posted below.
No, a cow will not eat meat, although there will be some curious cow that would probably try it, cows do not and will not eat meat.
No, never. Cow paddies are cow feces.
You don't, it's disgusting if you eat a cow pat!
Only if the cow is dead. Vultures don't usually swoop down upon an alive cow and eat it.
No, a cow eats grass.
The cow.
cow balls cow balls
If you eat a sacred cow, you will be subjected to the disapproval of those who considered the cow to be sacred.
Muslims, first of all, can eat cow. Only pork and alcohol is forbidden.
A cow needs to eat food for the same reason you need to eat food: to live and be able to function. If you or a cow does not nor cannot eat food, you or that cow will starve to death, or become so thin and weak that you will not be able to move or function properly to survive.