In this competitive world most of the people think that "age is required for success, for aged and very young person success is a difficult one." There are many persons but here is the list of 4 Persons who proved that " Age is just a number "

1. David Karp

David Karp is the CEO of Tumblr. (a social app) At the age of 14, Karp was an intern. After gaining some experience, at the age of 17, he started a blogging platform "Tumblr". Within 2 weeks it has reached 75,000 users. Now his net worth is $200 Million. 

2. Colonel Sanders 
All of us are familiar with the word KFC(Kentucky Fried Chicken). Sanders is the founder of KFC. During the age of 16 - 40, he attempted many jobs. Finally, at the age of 62, he started his first KFC restaurant at the South Salt Lake of Utah. Within one year the sales become tripled. At the age of 90, he died due to pneumonia. 

3. Mark Zuckerberg 

Over 1.2 Billion people in the world use Facebook. The reason for this huge success is the CEO of Facebook ''Mark Zuckerberg''. He launched Facebook in 2004 at the age of 19, literally changing the way people communicate. Now his net worth is more than $54 Billion. 

4. Justin Bieber
Justin Bieber is a well known Canadian pop singer. This young talent was discovered by Scooter Braun. At that time he was only 13. He gave many hits like 'Sorry', 'Baby', 'Let me love you' etc.. He did his songs and released on YouTube. He also sells his recordings. With more than 120M followers on Twitter and Instagram, he became a sensation.