Statistics for 1, 2, 3, or 4?

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Question	Answer	% Correct
How many countries have a land border with the United States?	2	90%
How many months have 30 days?	4	89%
How many countries begin with Z?	2	87%
How many goals does a player need to score to have a "hat trick"?	3	84%
Which number has more than two factors?	4	80%
How many Horsemen of the Apocalypse are there?	4	75%
How many capitals does South Africa have?	3	69%
What is the atomic number of Lithium?	3	66%
According to "Three Dog Night", what is the loneliest number?	1	65%
How many leaders has North Korea had?	3	65%
How many beats are in a measure in common time?	4	65%
Which number does not have any homophones?	3	57%
Which number appears in the title of a Charles Dickens novel?	2	55%
Which number is considered unlucky in China?	4	40%
Which Crusade was most successful in accomplishing its stated goals?	1	28%