Given a question and its paraphrases, answer the question. The answer should exactly answer all the questions given without any ambiguity. Don't give partial answers.

Q: Questions: ['at what age did van gogh live until he died?']

A: 1890-07-29
****
Q: Questions: ['when is the birthday of justin bieber?']

A: 1994-03-01
****
Q: Questions: ["what was barack obama's age when he married michelle obama?"]

A:
31 years
****