Answer:
I hold two people together but touch only one.
I have a little pool with two layers of wall around it. One white and soft and the other dark and hard. Amidst a light brown grassy lawn with an outline of a green grass.
I go through a door but never go in, and never come out. What am I?
Ripped from my ancestors home beaten and burned I become a bloodthirsty killer.
I'm not a bird, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
Give it food and it will live, give it water and it will die.