You may now respond.
Just Relax and have Fun with it.
Simply because it said it was often the best response ;-)
What is your question?
Questions that are rhetorical need no answers, or questions which no one knows a sure answer.
The only true wisdom is in knowing you know nothing.
The question is referring to trouble makers that just want to get a reaction from you.
Then in that case, yes, no response is the best thing you can do...no need to argue with people like that.