1. Who was the world's first billionaire?
A. John D. Rockefeller
B. King Croesus of Lydia
C. Bill Gates
D. John Jacob Astor
Answer: A. John D. Rockefeller
American businessman and philantropist John Davison Rockefeller (1839-1937) walks with a group of unidentified men along a city street, New York, 1908.
2. Which family has the most members in the list of America's 10 richest people?
A. The Kochs
B. The Gateses
C. The Waltons
D. The Rockefellers
Answer: C. The Waltons
While Charles and David Koch are tied for the position of fourth richest person in America, their combined wealth pales before the might of the Walton clan. Christy, Jim, Alice and S. Robson Walton hold spots six, seven, eight and nine on Forbes' list of the richest Americans, while two others -- Ann and Nancy -- also make the top 100.
3. Which city has the most billionaires?
B. New York
C. Hong Kong
Answer: D. Moscow
With 79 billionaires, Moscow far outpaces New York's 59. London and Hong Kong, meanwhile, are neck and neck, with 41 and 40, respectively.
4. One57, New York's tallest residential building, has the most billionaires living under one roof. How many live there?
Answer: C. 9
Currently, nine billionaires have purchased the largest apartments in the One57, making it America's unofficial billionaire haven. Then again, with prices ranging from $45 to $90 million apiece, you'd almost have to be a billionaire to comfortably afford a spot in One57.
5. In America, which industry produces the most billionaires?
A. Real Estate
Answer: B. Investments
According to Forbes, America has 100 investment billionaires, 37 media billionaires, 27 real estate billionaires, and 15 sports billionaires.
6. Of these four billionaires, which one lost the most money in 2011?
A. Warren Buffett
B. Carlos Slim Helu
C. Larry Ellison
D. John Paulson
Answer: A. Warren Buffett
2011 was a tough year for all four of these billionaires, but Warren Buffett had the worst time of all. With a loss of $6 billion, his net worth dropped to a mere $44 billion. On the bright side, he still didn't do as badly as India's Lakshmi Mittal, whose $10.4 billion loss reflected more than a third of his total net worth.
How many average Mexican households would it take to equal the fortune of Mexican billionaire Carlos Slim Helu?
A. About 9 million
B. About 6 million
C. About 3 million
D. About 1 million
Answer: B. About 6 million
The average Mexican household makes $11,940 per year. At that rate, it would take 6,030,150 households to equal Carlos Slim's $72 billion fortune, which, as of December 2012, made him the richest person in the world. Given that there are 28.1 million households in the country, Helu's wealth is roughly equal to the yearly income of 21 percent of Mexico.
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Bruce Watson is a senior features writer for DailyFinance. You can reach him by e-mail at firstname.lastname@example.org, or follow him on Twitter at @bruce1971.