TASK DEFINITION: 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.
PROBLEM: In mahabharata who was father of chitrasena vrishsena?

SOLUTION: Karna

PROBLEM: Who became famous by singing the blues during the jazz age?

SOLUTION: Empress of the Blues

PROBLEM: When did home video games first become very popular?

SOLUTION:
1980