Just done all four, thanks Chris. I've not been keeping up with the other threads but, reading this one, it seems most people found the fourth one the hardest and that was certainly the case with me! Several lucky guesses for part four make my score look a lot better than it really was, whereas for the first three parts I knew more. Scores:
Part One; 9-12 Experience; Your score: 11/13
Part Two; 9-12 Que Sera, Sera; Your score: 10/13
Part Three; 9-12 Barking up the wrong tree; Your score: 10/13
Part Four; 5-8 Nasty; Your score: 8/13
Total: 39/52