Answer:
I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released I may do unstoppable damage.
What is harder to catch the faster you run?
What goes through cities and fields but never moves?
I am rarely touched but often held and if you are smart you'll use me well.
What type of house weighs the least?
What language does a billboard speak?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic