Question:  The 2012 Olympic hunger summit was held at the official residence and office of who?

Related documents: [0]  [DOC] The 2012 Olympic hunger summit was an international gathering on 12 August, the closing day of the 2012 Summer Olympics, held at 10 Downing Street London. The event was organised largely by the Department for International Development. It was co-hosted by Britain's prime minister, David Cameron, and by Brazil's vice president Michel Temer. The summit was attended by several high-profile athletes and by delegates from various national governments, the United Nations, NGOs and from the private sector. [END] 
[1]  [DOC] 10 Downing Street, colloquially known in the United Kingdom as Number 10, is the headquarters of the Government of the United Kingdom and the official residence and office of the First Lord of the Treasury, a post which, for much of the 18th and 19th centuries and invariably since 1905, has been held by the Prime Minister. [END]  
Answer: First Lord of the Treasury
First Lord of the Treasury