A bar that appears over a Roman numeral indicates what?

More Questions:

What is the more common name of Sildenafil Citrate?

In which sport would you be judged on your pike or your jack knife?

How many time zones are spanned by Russia?

In the title of a George Bernard Shaw play, what's John Bull's Other Island?

Which sportsman's autobiography is titled "You Cannot Be Serious"?

Margaret Munnerlyn Mitchell, author of the book "Gone with the Wind', was born in what city?

What does the brass plate on Number 10 Downing Street say?

What vitamin group is mostly required for blood coagulation?

Mt. Rainier is one of sixteen volcanoes in the world that is classified as what?

Who starred as Captain Georg von Trapp in "The Sound of Music"?

In the 1986 movie "Labyrinth', what disguise does the King of the Goblins visits Sarah's house under?

On the TV show "Cheers', what was Sam's nickname when he pitched for the Boston Red Sox?

In the 1975 movie "Jaws', what was the name of Quint's boat?

The month July is named for what historical leader?

The novel "The Starlight Barking" is the sequel to which popular children's book?