Answer:
What is harder to catch the faster you run?
I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released I may do unstoppable damage.
I'm really blue but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt.
When you take away the whole from me, there is always some left. What am I?
What has many teeth but can't bite?
Often cooked as fillet, this meat comes from an animal that swims underwater.