useless trivia: What Word Means: A Doctor - Clover, Lucerne, Etc?

Questions

Who is the original master of the Shakespearean jester Lancelot Gobbo?

Who is the master of the Shakespearean brute Caliban?

Who did Hercules persuade to go and get the Golden Apples for him?

Which group featured in the film "Four Weddings and a Funeral"?

Who was Evander Holyfield's trainer talking about when he said, in 1991,"Some say he's as fit as a fiddle, but he looks more like a cello to me".?