Name The Year: James Watt, Scotland, inventor (steam engine), born.?

Questions

In music, what 'H' is an open framed instrument played by plucking the strings with the fingers?

The name of the famous basalt pillars found on the Northern Ireland's coast?

In the animal kingdom, what type of animal is a rockhopper?

In 1965, Alexei Leonov became the first man to do what?

In liturature, which writer created Sid Halley, the jockey turned private investigator?