Yes you do but you can play for free for a limited time. Just go to worldofwarcraft.com
Yes, you need a Battle.net account to play World of Warcraft. A while ago Blizzard required that all World of Warcraft accounts be merged to Battle.net accounts.
Yes you can but you need to have World of Warcraft downloaded on the computer you want to you is on.
If you delete the program from your computer, then you cannot play the game. You need access to the client (program) in order to play. Your account however, is not deleted. It will be there when you decide to come back to World of Warcraft.
The Darkmoon Faire is in the game of World of Warcraft. To play you must have an account with World of Warcraft and play the game. You go to the main menu and select the mode and level you wish to play.
no
no you don't
There are no trusted sites to sell World of Warcraft accounts. Besides, you are not allowed to sell it. If you no longer wish to play World of Warcraft, then just stop playing.
The only way to playt World of Warcraft for free (legally) is to use a free trial account. This type of account is severly limited in the levels you can accesss and the chat channels that you can use.
Yes, but not at the same time
World of Warcraft can be installed on as many computers as you want. The problem is that you need a CD key and a account to play but you can use the same account on every computer you have it installed it on. I.e. you can have any number of computers but you have to pay for a serial number to create your account - each account is separate and costs $15/month to have.
If you wish to quit playing World of Warcraft, simply enter your battle.net account and stop the subscription payments. Your account will close once the timer expires. This does not delete your account, but you won't be able to play. To delete the account entirely, you can find the option in your account, or by contacting customer support.
In order to play on World of Warcraft: Lich King, or Burning Crusade, or Cataclysm, you are required to purchase and install all previous versions of the game. The reason for this is simple - Only World of Warcraft is a stand alone game and all the other ones are expansions to this. It is possible to download all of these games for free from the Blizzard website or through CD's or DVD's already in your possession, but in order to play you must have an active account which will require unique CD keys for each game as well as the monthly subscription fee. You do not need to own or install any of the Warcraft games, such as Warcraft III or Warcraft: Reign of Chaos in order to play World of Warcraft.