Answer:
I have a tongue, but cannot speak. I have a bed but cannot sleep. I have four legs but cannot walk. Yet I move as you do. What am I?
Canine children.
The more you take away the bigger I get. What am I?
I mirror your actions.
What has roots that nobody sees and is taller than trees. Up up up it goes and yet never grows?
Give it food and it will live, give it water and it will die.