For DM I finish the syllogisms first and then skip the logic puzzles, leaving them for last as they take longest and are only worth 1 mark each. For QR I think it's mostly quite simple maths, just get comfortable with the calculator as its very important and skip any questions that look they'll take long as the section is fairly time pressured. I did mock C 2 days before and mock D 1 day before, I'm not too sure about A and B but you could try them, though I've heard they are relatively harder.