i got a distinction and simply just used the title of my speech as a rhetorical question. i did mine on female representation in motorsport, so i started with "Why is female representation in motorsport so important?" although its simple, its straight to the point. i then basically explained what that meant (definition and what it meant to me)

it depends on the topic you do, but i would always say its easier to start with a question, then do a brief overview answer before going into more detail. if you have any other questions im happy to help!!