to get in to roblox HQ go to Google and type in roblox HQ in roblox HQ you can check out your level see who is the greatest noob etc.
The ROBLOX HQ is in Silicon Valley, California.
You can get 'old ROBLOX' by downloading the 'Roblox Old Texture Pack Hq'
No Roblox HQ is not public, but you can schedule visits with the Roblox admins on certain dates. During these visits, Roblox admins give visitors a tour of the office and take questions and ideas. Contact Roblox customer support for more information.
It is out on test and should be out on open in 5-30 days!
http://robloxhq.com/index.php?/levelcalc is where you can find the Roblox HQ-Level Calculator. It works great :)
In real life: Somewhere in Calfornia, USA. Closer to northern Cali. on ROBLOX as a game: In the profile of ROBLOX and Builderman there is a place called "ROBLOX World HQ"
Roblox HQS phone number is 888-858-2569
No one knows the Roblox maintenance password other than Roblox employees. Be patient: the website will not be offline for long. While you are waiting for the website maintenance to finish, you can work on your place and look at Roblox fan sites such as Roblox HQ.
A secret only specific UCR members know.
No, Roblox is completely free to play, but it is not open source.
Games are picked randomly i think. the more visits you have the higher chaange though