Q: What are Rigel, Betelgeuse, and Polaris?
What is the answer?

A: stars

Q: What river does the Hoover Dam dam?
What is the answer?

A: colorado river

Q: The Bengali films Pratidwandi, Seemabaddha and Jana Aranya directed by the Oscar winning Satyajit Ray are known as the trilogy of what Indian city to which he was strongly associated?
What is the answer?

A: calcutta

Q: Which one of these cheeses is not from and named after a Dutch city/place?
What is the answer?

A:
emmental