Grabbag: New England state mentioned in a Mark Twain title, he also lived there?

Questions

What kind of boat,invented in 1898 is held clear of the water by underwater wings?

What do tha Albert Memorial and St Pancras Station have in common?

In 1984 which country wrested the Americas Cup away from United States?

Which Bach compsositions were never performed for the nobleman to whom they were dedicated?

The earth doesnt take exactly 24hours to rotate - is it faster or slower?