If they aren't already in your contacts list, they can send you a contact request by looking your Skype name up with your email address. You'll need to accept their request in order for them to call you.
Yes, but there are restrictions in some states/counties. For instance if you live within a certain distance from a school or bar or church it may disqualify your residence. Call...
In Settings, go to Accounts. There it will show the emails. If not, go to the bottom where it says Backup and Reset, click Factory Reset. This deletes everything though,...