Q: What became the tallest building in the world when it opened in 1931?
What is the answer?

A: empire state building

Q: The Bodleian Library, one of the oldest libraries in Europe, is the main research library of which seminal institution?
What is the answer?

A: university of oxford

Q: Known as the Empire State of the South, what was the 4th state to join the union on January 2, 1788?
What is the answer?

A: georgia

Q: What position has Boris Johnson held from 4 May 2008?
What is the answer?

A:
mayor of london