What decade is the TV show "Bonanza" set in?

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The Demologos was the first steam powered what?

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According to Exodus, what is the second plague of Egypt?

Belgrade lies on the Danube and which other river?

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What kind of TV ads were banned in the US in 1970?

What is the only superhero film of the 1970s that earned enough at the box office to be a top ten film for that decade?

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What album was the first to have all of its tracks licensed for use in movies, TV shows and commercials?

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Who played the role of Natalie Cook in the 2000 movie "Charlie's Angels"?

Approximately when was the Colosseum built?

When was the Rosetta Stone found?