Explanation:
Possibly you could say something around the lines of:
"Now my question to you is this: is blah worth blah?"
would you have done blah to get blah?"
when we see blah / when blah happens,
are we doing blah/saying blah thinking blah?"
I won't just give you a question, but I will tell you that the reason this is present is to make sure that the audience will continue considering whatever idea you have presented them with a while after you present it. It required their minds to engage with your topic. It provides you with an opportunity to guide the audience on what you want them to consider after having heard your point.
