The worlds are probably not stored on any official Mojang server, so are not linked with your account, they are most likely stored locally on your harddrive.
Yes you can, their worlds wont appear on your computer, all you have to do is download the minecraft application. there is no limit on how many users are on one account.
bro it is ur computer this is a **** and it wont work
Because 1.6 hasn't come out yet.
Re instull Minecraft
It's either you got a very laggy or virused computer/laptop. It should work if you wait or you screwed up your laptop/computer.
the answer is that i wont tell you,,,, and you are not allowed to cheat by looking on the computer haaahahahahaha
u need a mac computer to open the mac app store
by downloading firefox into your computer
There is a demo where you can play one world for about 90 minutes before it becomes uneditable, and an unlimited amount of worlds.
They don't.
you wont believe what it is its 12345
it might be your visa card try email visa and/or minecraft for suport.