2. I am the world’s richest man, valued at $56 billion
3. Now aged 51, I am involved with tackling AIDS in Africa and set up my own charity to help them So far, I have given away nearly $30bn of my fortune to good causes
4. I made my money as the inventor of Microsoft Windows
14. I am 53 and the world's only black billionaire for three years in a row I am also, according to many assessments, the most influential woman in the world
15. I am an influential book critic, an Oscar nominated actress, and a magazine publisher, as well as an award winning chat show host In 2005 alone I donated $303 million to charity