As of 2008, the highest paid head of the government in the world was in

The correct choice is: “Singapore”

The Prime Minister of Singapore (Lee Hsien Loong in 2008) has long been the world’s highest-paid head of government. Singapore ties ministerial pay to top private-sector salaries to attract talent and discourage corruption, and in 2008 the Prime Minister’s annual salary was about S$3.76 million (roughly US$2.5 million).

By comparison, the President of “The USA” was paid US$400,000 a year, and the heads of government of “Japan” and the “Russian Federation” earned far less than the Singapore Prime Minister.