What was Operation Paul Bunyan, launched by the USA during the Korean War, primarily intended to do?

Before coffee became the breakfast beverage of choice in America, what alcoholic drink was historically more popular to have with breakfast?

What major historical event caused the USSR to back out of a planned joint space mission with the USA during the Cold War?

To which country does the USA still send annual lease checks for the land on which Guantanamo Bay is located, checks which remain uncashed?

George Koval, a Soviet spy unmasked in 2002, is famous for infiltrating which top-secret American project during World War II?

Who designed the current flag of the United States as a school project when they were a teenager?

In 1942, the US military in Los Angeles fired at an unidentified object in the sky during an event known as the...?

What was the name of the secret program by which the USA recruited scientists and engineers from Nazi Germany after World War II?

Which Founding Father was known for his unusual health practice of 'air baths,' which involved sitting naked in front of open windows?

In which U.S. state is the Crater of Diamonds State Park, the only place in America where the public can mine and keep naturally occurring diamonds?