Good revision writing or speaking activity - a selection of questions timed on Power point

I have taken a selection of common speaking / writing questions on a variety of topics and put them, one by one, on a Power point. The added twist is that the slides are timed, so the students have to say as much as they can before the slide changes. It starts off slow and gets faster so students have to say more.
Each slide has A or B at the top - for person A or B in each pair.
It’s designed for students to say the answers aloud to each other, but they may equally write answers using mini white boards.
Good for revision at KS4.
Please give feedback.
I hope you find this useful; my classes have always found it quite motivating.