What spirit is the comic book nemesis of Casper, the Friendly Ghost?

More Questions:

In which country did the cheese Emmental originate?

Which composer was nickname the "Red Priest"?

The San Andreas Fault is located in which state?

Niamey is the capital of which country?

Where would one find Catalonia on a map?

Doha is the capital of which Middle-Eastern country?

Who is considered the father of the computer due to his plans for a steam-powered difference engine?

What was the main method of food preservation used by the Incas to store their potatoes?

Polaris is more commonly referred to as what?

What name is given to the study of volcanoes?

What double-word song title was a hit single by Billy Idol?

What two characters from "The Little Rascals" are named after plants?

How were Theodore and Franklin Roosevelt related?

What city was Bob Crane killed in?

What was the name of the B-29 bomber that dropped an atomic bomb on the city of Nagasaki during WWII?