In The Simpsons, Principal Skinner has a picture of what hanging opposite his desk in his office?

More Questions:

The Fields Medal is an award given in what field?

Coffee beans come from which plant?

What is Mark Twain's real name?

What author created the character of Tom Swift?

What Canadian province is home to Pink Mountain, Muncho Lake and Nootka Sound?

What US city is serviced by O'Hare International Airport?

What type of animal flew to space in the US V2 rocket launched in 1949?

Which element has the atomic number of 12?

What is March's birthstone?

What are the names of the three Nirvana band members?

Lenny Kravtiz is the son of what popular sitcom actress?

In which country was the first soccer World Cup held?

What is the atomic number of tungsten?

What year did Mariah Carey release the single "All I Want For Christmas Is You"?

What is the most densely populated US state?