IPhone 4 lock screen frozen

IPhone 4 lock screen frozen! Help?

Added (1). My iPhone 4 lock screen is not working. The time is changing normally and everything so it's not just frozen but it doesn't seem to be reacting to my finger at all! The home button and off button are working normally but the screen is not. Help please

Added (2). I'm also getting notifications normally but it's not letting me swipe or do ANYTHING on the screen. Ugh please help

Added (3). also yes I put it in the wrong category for a reason. Nobody was answering it in the right category but I need help

How to delete songs off itunes?

Ok so I have songs on itunes on the "on my phone" bit and I tried pressing the delete button & everything but nothing is working.
the check box next to it is grey aswell so please tell me what to do I'm worried
and how to make the yellow bit go down that says "other" cos I pressed sync by accident and now it went up to 8.50gb D:
please someone help!

* I also deleted the songs in the library section and off the computer so I'm not sure what to do, I can't locate it aswell
* i have windows if that helps

(sorry for making it so long)

I Found lost iPhone what should I do?

It been now over two weeks since I found iPhone 5c, I try to open passcode but not worked, I waited someone to call but it shows no service and when I take card out it is not from my country…

what should I do? Now after couple of tries it take me to emergency passcode since I was not be able to open it

WHAT SHOULD I DO? He probably left the country by now.