A Sone is a unit of what?

More Questions:

How many degrees of black belt are there in karate, from student to Hanshi?

What children's literature character is usually accompanied by his canine pal Ribsy?

What book facilitated the ban of the pesticide DDT in 1972 in the U.S.?

Which author wrote the horror novel "Pet Sematary"?

Into which sea does the Nile river flow?

What is Europe's longest river?

Where in Egypt is the Tomb of Tutankhamen?

What duo is credited with the discovery of the planet Neptune?

Wilhelm Roentgen won the first Nobel Prize in Physics for discovering what kind of radiation?

What is the fear of nudity known as?

A tetragon is geometric shape that has how many sides?

Who was the first human in outer space?

Which British Prime Minister was assassinated in 1812?

What is the name of the base twenty numbering system?

A 8 to 12 mph wind on the Beaufort scale is called what?