Title: Queen (band).
Question: Where did Queen record their 1982 album? 

Title: Imperial College London.
Question: What percentage of Imperial's staff was deemed to be internationally excellent in 2008?

Title: Chihuahua (state).
Question: What agreement sparked industrial development during the 1990s?

Title: Frédéric Chopin.
Question:
At which two establishments was the last of these performances conducted at on 25 and 26 April 1841?