Problem: What is the name for the shape of a proscenium in a theatre?
Answer: proscenium arch

Problem: In 1961, where did a CIA-sponsored group make an unsuccessful attempt to invade Cuba?
Answer: bay of pigs

Problem: What is the name of Sebastian Flyte's teddy bear in Brideshead Revisited?
Answer: aloysius

Problem: Grenache is a variety of which fruit?
Answer:
grape