Answer:
What object has keys that open no locks, space but no room, and you can enter but not go in?
You can draw me, fire me or fill me in.
You use it between your head and your toes, the more it works the thinner it grows. What is it?
Big as a saucepan, deep as a cup, Even a river can't fill it up. What is it
What fastens two people yet touches only one?
What gets broken if it’s not kept?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?