Answer:
What can you catch but not throw?
What is weightless but it needs two person to hold it?
You need a key to receive an answer from me. The answer you'll find is straight from your mind. What is it?
What binds two people yet touches only one?
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
What is full of holes but still holds water
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?