Mach refers to the speed of what?

More Questions:

What is the NATO phonetic alphabet word for "J"?

Tiffany and Co. has a registered trademark on its signature shade of what color?

What number have you rolled in a game of craps, if you roll "boxcars"?

What drink, created in 1886, was first advertised as "delicious and refreshing"?

What kind of flowers did Mary Poppins wear in her hair?

In Greek mythology, who was the hunter who was torn apart by Artemis" dogs?

Who was Humbert Humbert's obsession in the novel "Lolita"?

What is the capital of the Canadian province Nova Scotia?

In what city would you find Tivoli Gardens?

In the film Moneyball who stars as the manager of a struggling baseball team?

What instrument does Jack White play in the band White Stripes?

In the 1998 movie "You've Got Mail', Joe and Kelly are in what business?

In the film "American Hot Wax', who did Jay Leno play?

Who uttered the line "There you go again" during a debate?

Who invented writing?