Speakers - Always Repeat the Question
If someone in the audience asks a question that you plan on answering then please repeat it, with your own wording, before you respond.
This gets us two things - the person asking probably won’t have a mic so not everyone will hear what he said, they will when you repeat it. Secondly - by repeating with your own phrasing - you’ll get basic confirmation that you understand what’s being asked rather than answering the wrong question; which wastes everyones time and leaves the asker frustrated.