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.

[Q]: Who acted as munna bhai in lage raho munna bhai?
[A]: Sanjay Balraj Dutt


[Q]: Who sang the facts of life theme song?
[A]: Gloria Loring


[Q]: Which layer takes up most of the earth's volume?
[A]:
mantle