In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Who is the host of khatron ke khiladi 2017?
Rohit Shetty

When did the new orleans saints win the superbowl?
2009

Which important war conference demanded the unconditional surrender of japan?

Berlin Conference of the Three Heads of Government of the USSR, USA, and UK