In which 1937 Marx Brothers film does Groucho say, while taking a pulse, "Either he's dead or my watch has stopped"?

Which 1937 novel contains the line "A sudden understanding, a pity mixed with horror, welled up in Bilbo's heart"? Who was British prime minister from 1937 to 1940? Which 1937 Best Picture winner is a biography of the writer who defended Alfred Dreyfus? Complete the title of Stephen Vincent Benet's 1937 story: "___ and Daniel Webster". Entering a mostly male domain in the late 1930s, Peruvian-raised Conchita Cintrón became famous as what? Which 1937 film was remade as musicals in 1954 with Judy Garland and in 1976 with Barbra Streisand? The 1937 German bombing of Almeria was part of which war? In which 1937 book does Gandalf tell the dwarves, "I have chosen Mr. Baggins and that ought to be enough for all of you…