The World's Billionaires

Columns: No | Name | Net worth ( USD ) | Age | Nationality | Source ( s ) of wealth
1 | Jeff Bezos | $ 112 billion | 54 | United States | Amazon | 2 | Bill Gates | $ 90 billion | 62 | United States | Microsoft | 3 | Warren Buffett | $ 84 billion | 87 | United States | Berkshire Hathaway | 4 | Bernard Arnault | $ 72 billion | 69 | France | LVMH | 5 | Mark Zuckerberg | $ 71 billion | 33 | United States | Facebook | 6 | Amancio Ortega | $ 70 billion | 81 | Spain | Inditex , Zara | 7 | Carlos Slim | $ 67.1 billion | 78 | Mexico | América Móvil , Grupo Carso | 8 | Charles Koch | $ 60 billion | 82 | United States | Koch Industries | 8 | David Koch | $ 60 billion | 77 | United States | Koch Industries | 10 | Larry Ellison | $ 58.5 billion | 73 | United States | Oracle Corporation

Example questions:
The youngest person on the 2018 list of The World 's Billionaires attended which college ? | The brother pair on the 2018 list of The World 's Billionaires each own how much of Koch Industries ? | The oldest person on the 2018 list of The World 's Billionaires list graduated from which university at only 19 ? | The man whose wealth , which put him on the 2018 list of The World 's Billionaires was acquired from Amazon was born when ? | The person from Spain on the 2018 list of The World 's Billionaires was briefly the richest person in the world in which year ?

Answers:
Harvard | 42% | University of Nebraska | January 12 , 1964 | 2015