What is the shadow-casting pointer on a sundial called?

More Questions:

NAFTA is a trade agreement between the US and what other two countries?

What does a red flag mean in auto racing?

Which very famous mystery novel was written by Gaston Leroux?

Who produced two booklets for "Comic Relief" under the names Newt Scamander and Kennilworthy Whisp?

Who completed his famous bird paintings in 1839?

Zoologist Dian Fossey dedicated her life to the study of what animals?

What year was actress Julia Roberts born?

Who played Marshal Matt Dillon on the TV series "Gunsmoke"?

What US university was the setting for the 1973 movie “The Paper Chase”?

What actor was the narrator in the movie "The Royal Tenenbaums"?

Who directed the 1999 movie "The Green Mile"?

Who plays Adam Sandler's boss in the 2006 film "Click"?

What year did the English Civil War start?

Who was the 21st President of the US?

In what year was the US Social Security Act signed into law?