Donald Knuth
Donald Ervin Knuth is an American computer scientist, mathematician, and professor emeritus at Stanford University.
Knuth was born in Milwaukee, Wisconsin, where his father owned a small printing business and taught bookkeeping at Milwaukee Lutheran High School, where Donald enrolled, earning achievement awards. He applied his intelligence in unconventional ways, winning a contest when he was in eighth grade by finding over 4,500 words that could be formed from the letters in Zieglers Giant Bar the judges had only about 2,500 words on their master list. This won him a television set for his school and enough candy bars for his entire school.
Source: Wikipedia