The number 20 is the basis for which numeral system?

More Questions:

What two consecutive signs of the Zodiac begin with the same letter?

What was the original brand of cereal whose mascot was Sunny?

The Pritzker Prize is an award given in what field?

Who remarked when Gertrude Stein complained she didn't look like a portrait he'd painted: "You will"?

What war is the setting for the novel "All Quiet on the Western Front"?

What item would you see on the flag of Malta?

How many ounces are there in a pound?

A group of rhinos is called a what?

Who is Bugs Bunny's archenemy?

Which character did Nick Nolte play in the 1982 film "48 Hrs."?

Which University was founded as the College of New Jersey?

What decade introduced barcode scanners to supermarkets?

What military legend was nicknamed "Old Blood and Guts"?

Which modern artist created the "Mother and Child Divided"?

What is the capital of Delaware?