useless trivia: What Word Means: To Let In Fresh Air To Drive Out Bad?

Questions

Who founded the Ballets Russe in 1909?

Which is the last of the year's four quarter days?

In which novel did Edgar Linton marry Catherine Earnshaw?

Name the cocktail which consists of Scotch and Drambuie?

Which company, formed by Cecil Rhodes in 1888, was an amalgamation of several diamond companies and is still going strong?