Hardcore General Knowledge #2

The Titanic was thought to be unsinkable because it contained watertight compartments that could be sealed to contain flooding. How many of these compartments did it have?

Who was the President of the Second Republic of Rwanda?

Although the Greek alphabet only contains 24 letters, there are several additional letters that were never in common usage. Ϝ (or ϝ) is one of them. What is its name?

What was the first ever company to obtain a market worth of USD 1 billion?

The Spitfire is perhaps the most famous aircraft of WWII, but only around half as many Spitfires were produced as the most-produced aircraft of the war. Which plane was that?

Although most of the world's highest mountains are in Asia, the world's highest volcano is not. Which volcano is this?

"Antidisestablishmentarianism" is one of the longest words in the English language. It refers specifically to opposition to the disestablishment of what organization?

What is the most-taken quiz on JetPunk that has never been featured?

What was the first book to be given an ISBN number?

Centigrade was once used as the name of the Celsius scale, but is no longer in common usage because it conflicts with another unit of the same name. What do centigrades measure?

What was the first nation to democratically elect a female head of government, in 1960?

Correctly spell the radioactive 43rd element of the periodic table.

Columbus "discovered" the Americas in 1492. In which year was he arrested?

What is the only spacecraft ever to have landed or crashed on Mercury?

Which major organization created the Arctic Code Vault in 2020 by putting a copy of all the public code on its servers in the Arctic World Archive?