useless trivia: What Word Means: A Stoloniferous Marsh Grass?

Questions

Which group had their first U.K. number one hit ill 1973 with RubberBullets?

What replaced English as the official language of Kenya in 1974?

What is the capital of the Canadian province of British Columbia?

Who created the characters "The Toff" and "The Baron"?

On whose death did Shelley write his elegy Adonais?