No, but if you're using it in commerce you could register it as a trademark.
To trademark a phrase, normally you will first establish that you're using it in commerce (as a business name or slogan, for example). Then register with the trademark office of all countries in which you intend to do business.
Short phrases such as movie titles are not copyrightable. You may register it as a trademark once you are using it in commerce.
Short phrases are not copyrightable. If you are using the website for commerce, you may wish to register it as a trademark.
You would not be able to copyright your surname; if you are using it in commerce, you may be able to register it as a trademark.
The US Patent and Trademark Office is an agency of the Department of Commerce.
No because it is trademark But you can write a show similar to it without using iCarly or the names of the characters
You do not have to register a trademark but you can. If you do not register, you can put a TM or SM next to your trademark name to show that it is your trademark. You should do some research before using the name and claiming a trademark to make sure nobody else is using it. You can register your trademark with the US Patent and Trademark office. See the related link. This offers you extra legal protections such as the ability to bring a court case in federal court due to an infringement, protection from US customs that prevents imports of products using your same trademark, having your trademark documented so that you have proof you used it first, etc.. When you do this you put an R with a circle around it next to your tradmark name.
No; you would need to make a good-faith search to find others using the name, and the existing business could claim a common-law trademark without registering for formal protection.
Trademarks are issued by the federal government of the country you're doing business in; in the US, it's the Patent and Trademark Office, which is within the Department of Commerce.
It depends on who owns the trademark (you or someone else), the nature of the copyrighted work, and how you're using the trademark in the work.
ITIL is owned by the Office of Government Commerce (OGC) and is copyright and trademark protected, from http://whatisitil.com/