In the 1950s, the NFL experimented with what new color for their footballs?

More Questions:

In chess, which piece only moves diagonally?

What family member traditionally decorates the "tannenbaum" in Germany?

Where was the first FIFA World Cup held?

What kind of sauce is served on eggs Benedict?

'Girls with a Pearl Earring" is one of only thirty-five extant works of what Dutch painter?

Who is the author of the "Bourne Trilogy" novel series?

Which six states share a border with Idaho?

How many territories are there in Canada?

What shape is the piston in a "Wankel" engine?

What is the atomic number of magnesium?

In 2008, the city of Milwaukee unveiled a statue honoring what "Happy Days" character?

What nationality is actor Anthony Hopkins?

Which character did Jack Nicholson portray in the 1974 film "Chinatown"?

What ousted Eastern European leader was executed on Christmas Day in 1989?

By what name was Milwaukee's Pettit National Ice Center known as until 1991?