A rhetorical question is a common rhetorical device where a question is asked by a speaker, but no answer is expected from the audience. This distinguishes it from explicit verbal audience interaction where a speaker asks a question, and then waits for a response or calls on someone to answer it.
You are certainly aware of this technique, but are you aware that you can use a rhetorical question in at least nine different ways? No? Read on!
This article identifies nine ways to use rhetorical questions, and provides examples throughout.