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.

When did the us detonate the first hydrogen bomb?
November 1, 1952

Who ordered the translation of the old testament into greek?
Ptolemy II Philadelphus

Who plays raj koothrappali on big bang theory?

Kunal Nayyar