The strength of prescription eyeglasses is measured in what unit?

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Until 2008, what color was the center square on a standard Scrabble board?

What Philadelphia building appears on the back of the US $100 bill?

Ilie Nastase was a champion in which sport?

Coffee heiress Abigail Folger was one of the victims of which criminal?

Who earned the moniker "Lady Lindy"?

What do opposite faces of a die always add up to?

What was the pen name of author Theodore Geisel?

Who wrote the epic poem "Samson Agonistes"?

What element has the chemical symbol K?

What is the atomic number of the chemical element gold?

What show begins with the line "In a time of ancient gods, warlords and kings..."?

Who played the role of TV's C. J. Barnes?

What 20th century conflict was dubbed the "forgotten war"?

In 1995, who became the first Republican Speaker of the House in 40 years?

The "Indus Valley Civilization" is also known by what other name?