(This answer assumes the question is about the "Cocoa" bean from which Chocolate is made.) The Cocoa bean is the seed of the Cacao tree. Cacao trees may be grown from a single seed (that is, Cocoa...
In the ground.
Yes
no beans seeds don't grow faster than other seeds because it takes time so the beans can grow.
Yes, a bean is a seed. It is a seed for a bean plant. Bean is often said in place of seed. I hope this makes it easier to understand. :)