Answer:
What binds two people yet touches only one?
It's like food but water kills it. What is it?
It doesn't live within a house, nor does it live without. Most will use it when they come in, and again when they go out.
What's as small as a mouse but guards a house like a lion?
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
I start with T end with T and within me is T.
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?