Who became the Emperor of Ethiopia in 1930?

Haile Selassie

Which classic sci-fi horror film involves a research team in Antarctica discovering a shape-shifting alien? Who directed "Silver Linings Playbook" starring Jennifer Lawrence and Bradley Cooper? What pastry treat traditionally enjoyed during Hanukkah is fried in oil and stuffed with jelly or custard? Who is known for wielding the enchanted sword known as Dragonfang? What do mathematicians call angles that share a common side and vertex?