How much wider is a tennis court during a doubles match than a singles match?

More Questions:

What mass market tea brand shares a name with an English brewery?

Which series of novels refers to its main character as "The Last Gunslinger"?

In Shakespeare's Romeo & Juliet, what is Romeo's surname?

Herodotus is commonly referred to as what?

What US city is located on the shores of Rapid Creek?

Which country invented the Wankel engine, also known as a rotary engine?

What two dogs are bred to make a puggle?

Which spacecraft was the first one to leave the Solar System?

What type of music did Patsy Cline sing?

Who provided the voice for Mickey Mouse from 1928 to 1946?

What sin does John Doe address first in Seven?

What nation has had its own scandals dubbed "Muldergate" and "Inkathagate"?

"Back to Us" is the name of what band's 10th studio album?

Which superhero was created by Mike Young, as a way to help his child sleep at night?

The International Headquarters of the United Nations is surrounded by what city?