The questions

1 What was discovered on a dish containing Staphylococcus aureus?
2 At which Jewish festival is it traditional to serve triangular food?
3 Whose daughter became Queen of Mauretania in 25BC?
4 Kling Klang in Düsseldorf was which band’s studio?
5 Which Briton was the first person to deadlift 500kg?
6 What are studied by a dendrochronologist?
7 Which warrior class was abolished in the 1870s?
8 On the Calculation of Volume is a seven-novel series by which Dane?
What links:
9 Gladstone only; eg Salisbury, Baldwin; eg Churchill, Wilson; eg Thatcher, Truss?
10 Alexander III; Austerlitz; Alma; Bir-Hakeim; Jena; Léopold Sédar Senghor?
11 Bambino; Donskoy; Elf; Peterbald; Sphynx?
12 Althea & Donna; Ken Boothe; Desmond Dekker; Boris Gardiner; Sean Paul?
13 Pacific Warriors; Invictus; Murderball; The Brighton Miracle; This Sporting Life?
14 Manchester and Sheffield, via Ladybower reservoir?
15 Earl of Essex; 16th US president; Australian bushranger; wartime German industrialist?

The answers

1 Penicillin.
2 Purim.
3 Cleopatra (VII) and Mark Antony.
4 Kraftwerk.
5 Eddie Hall.
6 Tree rings.
7 Samurai.
8 Solvej Balle.
9 Number of times as PM: 4; 3; 2; 1.
10 People and battles that give their names to bridges in Paris.
11 Hairless cat breeds.
12 Jamaican artists who topped the UK charts.
13 Films featuring various forms of rugby.
14 Snake Pass road (A57).
15 Real people in Booker prize-winning novels: Thomas Cromwell; Abraham Lincoln; Ned Kelly; Oskar Schindler.