Who wrote the novel on which Steven Spielberg's 'Ready Player One' (2018) was based?

Who wrote the novel on which 'The Silence of the Lambs' was based? Who wrote the novel on which 'Fight Club' was based? Who wrote the novel on which 'The Hunger Games' films are based? Who wrote the novels on which the 'Twilight' films are based? Who wrote the novel on which 'The Martian' (2015) was based? Which film series is based on the novels of J.R.R. Tolkien? Which film series is based on the novels of C.S. Lewis? What is the name of the killer in the 'Halloween' film series?