The questions
1 Who is the only one of the Forbes 400 richest Americans to be convicted of murder?
2 Caloris is the largest impact crater on which planet?
3 Who was the subject of Virginia Woolf’s biography Flush?
4 The Tobin tax is a proposed levy on what?
5 Where are Korotkoff sounds produced?
6 Who opened the first Casa dei Bambini in Rome in 1907?
7 What was defined as 1/10,000,000th of the distance from the equator to the north pole?
8 Which public safety and crime-fighting body is based in Lyon?
What links:
9 English; Dutch; blind; Vickrey?
10 Argus Filch; Jack Torrance; Davies, possibly; WALL-E; Penry Pooch?
11 Romanov Tercentenary; Cockerel; Pelican; Bouquet of Lilies Clock; Hen?
12 Eddie Hall, 2017; Gary Taylor; Jamie Reeves; Geoff Capes?
13 Milan-San Remo; Paris-Roubaix; Liège-Bastogne-Liège; Il Lombardia?
14 Requiem; thresher; goblin; porbeagle; mako; nurse?
15 Rachel Weisz; Julie Christie; Tippi Hedren; Joan Fontaine?

The answers
1 John du Pont.
2 Mercury.
3 Elizabeth Barrett Browning’s cocker spaniel.
4 International financial transactions.
5 In the body, by blood.
6 Maria Montessori.
7 Metre, in 1793.
8 Interpol.
9 Types of auction.
10 Fictional caretakers: Harry Potter; The Shining; Pinter play; Pixar film; Hong Kong Phooey cartoon.
11 Fabergé eggs.
12 British winners of World’s Strongest Man.
13 One-day cycle races.
14 Types of shark.
15 Starred in Daphne du Maurier adaptations: My Cousin Rachel; Don’t Look Now; The Birds; Rebecca.