A. A room without books is like a body without a soul. ~ Cicero
A. Morgan le Fey; Hannibal Lecter; The Wicked Witch of the West
A. Mary Magdalene. I'd ask her about her relationship with Jesus.
A close second would be the man who inspired the tales of King Arthur, if there was such a person. If so, I'd ask him all about his life, if there really was some truth to Merlin, Camelot, Guinevere, etc...
A. French fries