Bill Gates writes:

Hi, I’m Bill Gates, co-chair of the Bill & Melinda Gates Foundation. Ask me anything.

Many of you know me from my Microsoft days. The company remains very important to me and I’m still chairman. But today my full time work is with the foundation. Melinda and I believe that everyone deserves the chance for a healthy and productive life – and so with the help of our amazing partners, we are working to find innovative ways to help people in need all over the world.

I’ve just finished writing my 2013 Annual Letter http://www.billsletter.com. This year I wrote about how there is a great opportunity to apply goals and measures to make global improvements in health, development and even education in the U.S.

He also made a video of answers to popular questions:

He also posted this:

Perhaps he should ask Beyonce's publicist.