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.

Questions: ['when did barrack obama president was it 2009 or 2008?', 'at what time barack obama become us president?']
2009-01-20

Questions: ['what age did henrys first wife die at?']
50 years

Questions: ['what is the population of bakersfield in 2009?']

324,463