I feel knowing one riddle is an essential life skill, it's a simple thing to have up your sleeve for a moment that a good duel with another human is needed... settle your differences with words..and use your wit :)
My go to is...
What is so delicate that even saying its name will break it?
What is yours?
Silence?
I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breathe on this terrestrial ball.
What am I?
love this one!