What year did actor Anthony Hopkins become a naturalized citizen of the US?

More Questions:

Which German firm produced the World War II plane known as the Condor?

What toy company launched the Barbie doll in 1959?

What sportsmen are divided into naturals and goofy-foots?

In NATO's phonetic alphabet, what is the letter "F" referred to as?

What Irish author wrote the 1938 novel "Murphy"?

What is the capital of Croatia?

In what US states would you find Pikes Peak?

If you have singultus, what do you suffer from?

N2O is more commonly known as what?

Who was the male star of the 1967 film "Barefoot in the Park"?

In the 2002 movie "Spiderman', what was Peter Parker's profession?

Which Bond actor won an Academy Award for his role in "The Untouchables"?

In which US state does "The Blair Witch Project" take place in?

"Stay" was a hit single for which UK band in 1992?

What is the most densely populated US state?