How to reset my password on Iphone 5 with ios 7?

How to reset my password on Iphone 5 with ios 7?
I just got a used iphone 5 and it has a pass code, I can't reach he person I got it from to get their apple id.

Is there a way to restore the phone without this?

No, its not stolen.

Will my iphone info automatically sync without permission?

I'm babysitting and I have my iphone plugged into their computer to charge. I just want to make sure all of my pictures won't upload to their computer. The computer is locked but it's still charging. I also put "don't trust" on the prompt that popped up on my phone about sharing with that computer. I just want to make sure lol.

What does Extended mean on my iphone?

Today I noticed at home instead of the usual sprint it says extended. What does this mean? Am I being charged extra? I'm in area of poor signal. I'm on a iPhone 4S ios 7 in Texas if that matters.

IPhone 5 not syncing music from itunes?

IPhone 5 isn't syncing music from my itunes… Like so i deleted the data form "music" on my phone and i've tried making sure itunes match thing isn't on.i've also unchecked and sync my iphone with itunes then tick it again to resync but it doesn't really necessarily remove the songs from my phone instead it has like the icloud symbol and it doesn't play unless i use Wi-Fi/download it. How do i fix this?

Hey mfs did I get ripped off?

Ok so at first I was gonna go with the sprint unlimited everything for $80 ($90 after tax) on the iPhone 5s but I decided to cancel it because the coverage was bad and the data was slow. So now I have Verizon on $80($90 after tax) a month for 500 mb data and unlimited talk and text. And I don't really need that much data. I have Wi-Fi at home and school but I feel as if I'm getting ripped off because everyone's saying $40 for 500 mb is a rip off. What do you guys think? How much do you guys pay and on what carrier?

How safe would you say it is to send money by paypal for a purchase on gumtree?

Am trying to buy iphone 5s on gumtree and this guy wants to sell it, however since i'm in melbourne and he is in south australia i have to do bank transaction, i have decided to do the transaction using paypal since i have heard it is safer, however would you say it is safe to send the money and receive the iphone over postage or should i just let this one go?
list pros and cons too, as well as justification for your response.

Turning off all cellular usage on iPhone 5?

I live in Canada. Tomorrow, I'm going over across to the USA. I wanna bring my phone with me but I'm on a contract with Virgin Mobile and I absolutely do not want additional international fees for anything. Is there a way to turn off everything, including texting/calling?
I know about the "cellular data off" setting but that seems to only disable internet access and everything that requires it, not texting/calling.
I'd basically want my phone to become like an iPod?