In what year was the Richter scale developed?

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Which Pac-Man ghost appears first on the arcade game's list?

Of the four suits in a deck of cards, which suit is the highest ranking in a game of bridge?

How many people dance a "pas de deux"?

Who wrote the book "The Red and the Green"?

What nation's flag features a Sinhalese lion holding a sword?

What two US states border Mexico's largest state, Chihuahua?

Of the seven colors of the rainbow which is the middle one?

Who is credited with designing the modern zipper as we know it and use it today?

What is the name of the number system using only the symbols 1 and 0?

Who played the role of Marcy Runkle on the TV show "Californication"?

Which of the four Beatles was the eldest?

Along with Karl Marx, who penned "The Communist Manifesto" in 1848?

Where were the 1960 Winter Olympics held?

What was completed in 1869 at Promontory, Utah?

What is Ethiopia's official language?