New player questions

Hello everyone,
First I just want to say good job on doing this,I am completely in love with vanilla.
So, I have a few 'newb' questions that I'd like to know :
1) At what level can I start doing dungeons ?
2) Can i spam dungeons whole day or is there a limited time?
3) Are dungeons prio role to gear up or get good exp?
4) Would you reccomend me doing a dungeon until I get the needed item or once while leveling?
5) Does a group need to have the Tank,Healer and 3 dps? ( because I saw a vid on youtube where a grp is running WC without a tank )
Thanks in advance for the answers!
First I just want to say good job on doing this,I am completely in love with vanilla.
So, I have a few 'newb' questions that I'd like to know :
1) At what level can I start doing dungeons ?
2) Can i spam dungeons whole day or is there a limited time?
3) Are dungeons prio role to gear up or get good exp?
4) Would you reccomend me doing a dungeon until I get the needed item or once while leveling?
5) Does a group need to have the Tank,Healer and 3 dps? ( because I saw a vid on youtube where a grp is running WC without a tank )
Thanks in advance for the answers!
