What plant is the most common cause of hay fever?

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Of the 88 keys on a piano, how many are black?

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What US state's southern border is marked by the original Mason Dixon Line?

What Manhattan intersection was America's first transfer circle?

In computer Science, what does the acronym GIGO stand for?

What disco queen's first gold record was 1975's "Love to Love You Baby"?

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Who released the 1979 song "Rock "n" Roll High School"?

Who dramatically kissed Halle Berry on stage when he won Best Actor?

When was the printing press first invented?

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What year did the Mayflower transport the first English Puritans to the New World?