To log in to the game you use the same username and password you used to buy the game at the Minecraft website. If you have migrated your account to a Mojang account, use that email address and password.
You can't, sorry.
Yes and no.Only if the device is the same family as the original account. If you have a computer Minecraft account and want to play Minecraft on an X-Box you won't be able to.X-box Minecraft accounts will not work on an iOS Minecraft account, etc.You still need to buy seperate iOS, Android, X-Box, Playstation and Computer games/accounts. (Mac, Windows and Linux can use the same account tho.)
You can log into the Minecraft launcher on one PC with as many accounts as you want. You can also install as many as you want on each computer you have. However your saved games are not syced between PCs. On the same PC though, each launcher will still be able to access the same saved worlds.
same place as everywhere else from the minecraft website
I have done it you just put in the same email address and then do whatever you want after that
No, it will require a different email address than your 1st one.
By not making one and dicks
No, you can not have more than one battlenet account on one licence of World of Warcraft. You can however, have more than one licence of World of Warcraft on each battlenet account.
No two people can have the same gmail address. If there are 2 accounts, there will be 2 different email ID's. The Facebook account will be different in that case too.
You cannot use the same email to register multiple Spotify accounts.
The sign-in IDs cannot be identical for different PSN accounts. However, if you use Gmail you can add an extension on to the end of your email name by using a (+), thus allowing you to use the same email address for multiple PSN accounts. For example, if your email address is (yourname@gmail.com), you could use (yourname+psn1@gmail.com) and (yourname+psn2@gmail.com). This will make your PSN sign-in IDs different while allowing you to use the same email address.
Computers themselves do not generally have an email address. To be able to access the same email from different computers simply create an online email account such as Gmail (https://www.google.com/accounts/) . You can access this account anywhere you have internet on any computer.
as long as you a different email address and password for each of the accounts it will allow you to create as many accounts as you want, just sign out of one, and at the log in screen, select create account
You can't register 2 accounts with the same email address on Twitter (or any other website, as far as I know)
Yes it is possible but it cannot be under the same email address you would have top make a new email account in order to do this
only way you can is to search their email or search their name. If you know their email accounts try searching for them