The "Hunley" was the first of what type of vessel to sink an enemy ship?

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What country saw the origin of lawn tennis?

What zoo animals were set free in the title of John Irving's first novel?

Which European country replaced the Tolar with the Euro?

The Linke Scale is used to measure the blueness of what?

Who occupied the center square on the game show “The Hollywood Squares” from 1998 to 2002?

Who starred as Rocky Balboa?

What classic movie was based on a book titled "Everyone Comes to Rick's"?

Who played the role of Arnold on the ABC sitcom "Happy Days"?

Who released the 1970's album entitled "Madman Across the Water"?

What Scottish city is the setting for "Trainspotting" according to the plot?

What Disney cartoon character originally had the name Mortimer?

What was the 50th state to become a part of the United States?

Petrology the study of what?