Asking a question grabs the attention of your audience because we are programmed to respond to questions.
Your listeners might already be thinking that question. They will feel that you understand them when you state the question on their mind then answer it.
Posing a rhetorical question before you give important information builds anticipation for the information. That means they are more likely to listen and appreciate the information.
Asking a question makes your voice more interesting because you will naturally inflect your voice while asking the question. This is the simplest way to include vocal variety in your presentation.
This technique can be your secret weapon when you forget what comes next. You pose the question out loud to help get your brain back on track.
What rhetorical questions might you pose?