Well I've done a few calculations. Wolfgang was the first to arthroscopy by a hair (both he and snuffy were timed at 8.40AM but Wolfgang's came up first). Snuffy had more correct answers than Wolfgang, but given that Snuffy has already had a prize from me in a previous quiz, I'll declare Wolfgang the winner of this one. So if you PM me with your addresss Wolfgang, a prize will head your way.
Answers were:
1 Admiral benbow
2 Ring a ring a roses
3 Times they are a-changing
4 Hog-Eye man
5 Rolling home (to dear old England)
6 Oranges and Leemons
7 Spenser the Rover
8 Captain Kidd
9 Orange Blossom Special
10 Plane Wreck at Los Gatos
11 Ye jacobites by name

Tnanks, Snuffy, for your good wishes. The knee is fine but I'm immobilised for a few days.