Ghosts and ghouls

1 Which building is said to be haunted by the ghosts of English nobles Anne Boleyn, Lady Jane Grey and Sir Walter Raleigh?

2 Who wrote the parodic novella The Canterville Ghost in 1887?

3 Which 1996 Peter Jackson-directed horror-comedy starred Michael J. Fox as a psychic detective?

4 In paranormal investigations, what does EVP stand for?

5 Which Robert Burns poem tells the tale of a drunkard who stumbles upon a coven of witches?

6 The kitchens of the White House in Washington are reportedly haunted by Mamie, the wife of which former US president?