Misc: How many of the United States don't border the main land mass?

Questions

Which is the penultimate book of the New Testament?

Who wrote the book Longitude, about John Harrison's invention of the chronometer?

In which year did Fidel Castro overthrow General Batista in Cuba?

In 1648, the Treaty of Westphalia ended which war?

Jack Merridew is a character in which novel, first published in 1954?