There are a lot of social networks and programs availble with an iPad. Yes to almost all of them.
Phone numbers come with the SIM card, not the iPad itself, which may or may not be included with the iPad. If you have a data plan on your iPad, it will have a phone number, but won't accept calls
Take your iPad the Apple Store, They may be a Problem with the 30pin Connecter on your iPad.
All iPad chargers are world voltage, so they will accept 100-240 volts.
The latest one is always better, I got an iPad 3 and it is better than my friends iPad 2
You can't accept requests on the Twitter app.
I believe that most accept the term 'slate'.
Accept them
Accept that as your friends answer.
You can see your friends' posts on Facebook if they accept your requests to be their friends.
Then they are not real friends. Real friends respect their friends and accept his talents.
All iPads ship with universal power supplies, which accept 100-240 volts. You only need an adapter for the pins which plug into the wall.
It can. Real friends accept you no matter what.