Answer:
I am always in front of you, but you will never see me. What am I?
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
Two men walk into a restaurant. One man orders H2O. The second man says, โI will have H2O too.โ The second man dies. How come the second man dies?
I open wide and tight I shut, Sharp am I and paper-cut fingers too, so do take care, I'm good and bad, so best beware.
What wears a coat in the winter and pants in the summer?
What never gets any wetter no matter how hard it rains?