Misc: on what island is honolulu?

Questions

Israel Tongue and who else devised the "Popish Plot"?

Which element has the chemical symbol Cs; capital C lower-case s?

In 1950, which mountain was the first of over 26,000 feet to be climbed to the summit?

Which photographer, in 1976, told us that we'd take great snaps if we used an Olympus?

Henry the Eighth was the father of two English Queens, Mary I and Elizabeth I. Which other King was the father did the same?