New Delhi, Dec. 27 -- Warren Buffett, one of the most successful investors the world has ever seen, and the CEO and Chairman of Berkshire Hathaway, once said that Berkshire Hathaway was the dumbest stock he ever bought.

After buying his first shares of Berkshire in 1962, he took control of the firm in 1965, when it was a struggling textile company.

At this year's annual meeting in May, Buffett announced that he wanted to step down as CEO of the more than $1 trillion company at the end of the year. Greg Abel has been designated as his successor.

In 2010, Buffett sat for a conversation with CNBC's Becky Quick, in which he revealed that "the dumbest stock I ever bought was Berkshire Hathaway."

But why? Because Buffett ended up investing ...