Please be careful about staging questions you already know the answer to… especially so early in a site's development. I try and convey this to every new site we launch: Your home page says a lot about your site, and if there's a sense that that the users don't really need the help they are asking for, the whole exercise would likely be perceived as a waste of time.
Please, at least read
Your New Site: Asking the First Questions
I understand there are places that actually encourage posting self-answered solutions to interesting problems you've encountered… but let's not present this as some type of solution — i.e. seeding the home page — as a way of growing this site. Ask about problems you actually have, and please don't "seed" questions as a way of upping your numbers.
It will not work; trust me… and it may actually work against you when evaluating the whether this site has something interesting to add to the network.