What's the main ingredient in glass?

More Questions:

What was the first NBA team named after a car part?

Above 5,000 ft, coffee beans tend to develop a high level of what?

St. Patrick's Day is celebrated on what day in March?

What humorist often reminisces about his high school rock band, the Federal Duck?

What nation's legislative body is named The Storting?

Port Vila is the capital of which country?

In what European city is the house located where Anne Frank and her family hid from the Nazis?

On the ph scale, what number indicates neutrality?

What athlete had a part in the movie "Blazing Saddles"?

The I-V-vi-IV chord progression is commonly referred to by what alliterative name?

What character was Bela Lugosi best known for playing?

Which of Henry VIII's wives was the mother of Queen Elizabeth I?

In 41 BC, who ordered the death of her sister, Arsino IV?

Who played the male lead role in the film "Clash of the Titans"?

What is the stage name of Roberta Joan Anderson?