Buffett issues a March Madness bracket challenge to all employees who work at Berkshire Hathaway companies. If you can put together a perfect bracket, Buffett will award you $1 million. The only problem is that perfect brackets don't exist. It's basically impossible to do. So, unfortunately, Warren has to keep his money.

Elon Musk launched a March Madness bracket challenge that could send someone to Mars as part of the SpaceX program. All they have to do is correctly predict the win of each of the 63 games. X, which Musk owns,