This isn't possible.
i think if u block it
You can't
i want to delete my orkut account but i forget the password
You can not get a Moshi Monsters account unless you have an email. Moshi Monsters needs to be able to authorize your account and communicate with you and they can not do that unless you or your parents have an email account.
Without knowing the correct password you cannot login to an account.
We cannot without your account name and password.
If you do not have an E-mail account, you have no need to have a password (nor would any be assigned to you).
You can't cancel a Runescape account without a password, this is to prevent random players from deleting other players accounts.
To hack an unlimited Internet connection would require finding someone with an unlimited account. Then, you have to break their password if it is protected. To hack into someone's Internet account without permission is illegal.
By the way you are asking I'll suspect you are trying to learn how to delete someone's account on Youtube without knowing their password.
You need to join and make a free account to play. You can't play without a password.
You set up your own password when you set up an account. Only you should know that password. You can also use the site without having an account and so you do not need a password.