Jonas Salk discovered a vaccine for what disease?

More Questions:

What Winter Olympic sport event requires players to slide stones at houses?

Who invented the correction fluid known as Liquid Paper?

Bubble Wrap was invented while researchers were trying to make what?

What is the spice Paprika made of?

What did William H. Seward buy from Russia in 1867?

How many provinces are there in Canada?

What largest lake of Central America is home to unusual freshwater sharks?

What lives in a formicary?

What is the chemical symbol for potassium?

What causes pollen to stick to bees?

Who developed the classification we use for clouds?

What R&B singer was backed by "The Miracles"?

Who played the role of John Anderton in the movie "Minority Report"?

What name is given to the broad gap between the Saturn's A ring and B ring?

How was Mark Feld better known in the 1970s?