Who beheaded Medusa?

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

In what year did Mattel introduce the Ken Doll to complement Barbie?

What common lasagna ingredient is actually a by-product of mozzarella?

What is the scientific name for the North Star?

Who invented the lightning rod, though he refused to patent it?

What psychiatrist developed the principal of "synchronicity"?

What color is a polar bear during the summer months?

What do x and y chromosomes combine in making?

What does the "J." stand for in Michael J. Fox's name?

Lulu Roman was an original cast member of what long-running television series?

What year saw the release of the movie "Back to the Future"?

Who was the first president to appear on a U.S. coin?

Samuel Miller patented the first steam-powered what in 1806?

"Green Arrow: Year One" is a limited series published by who?

Where were the Pillars of Hercules located?