Google's Matt Cutts has published over 500 videos in the past four years - most of them answering questions related to SEO or webmaster topics. The questions aren't made up out of the blue, they come from SEOs and Webmasters asking Matt these questions.
How do you ask Matt a question, which he can answer on video for you?
Submit your question at the Google Moderator page. There are currently over 160 questions with over 2,000 votes from over 200 different people. So submit your questions ASAP, because Matt is likely to start recording the videos today or tomorrow.
Matt posted about this on Google+ saying:
It's time to record webmaster videos again!
In a day or so I'm going to record new webmaster videos with Michael Wyszomierski. If there's a question or topic you'd like me to make a video about, add it to https://www.google.com/moderator/#15/e=20ce74&t=20ce74.40
Remember: add your suggestion to the Google Moderator page--that's where I'll be looking, not in the comments here. :)
Again, submit your questions at the Google Moderator page.
Forum discussion at Google+.