Which US space probe was first to orbit another planet?

More Questions:

Listed alphabetically, what would be the first property on a Monopoly game board?

How many engines are on a B-52 bomber?

Heineken beer originated in which country?

What specific animal appeared above the "Don't Tread on Me" motto on early American flags?

What book won Frank McCourt a Pulitzer Prize in 1997?

In what decade were the books of J.R.R. Tolkien's "Lord of the Rings" trilogy first published?

What literary character lived at 221B Baker Street?

Into which bay does the Golden Gate Strait lead?

What does the Saffir-Simpson scale measure?

What animal is sometimes also called the "glutton"?

For what 1997 film did Demi Moore shave her head?

What year did actress Betty Grable die?

In the TV show "The Simpsons', what is the name of Homer's bowling team?

What short-lived 1970s TV series was set on Moonbase Alpha?

What sports event did Rosie Ruiz win by cheating in 1980?