Why did the sound suddenly stop working on my iPhone?

About a week ago while I was playing music on my phone, the sound just suddenly stopped working. I get no sound when I receive calls, play games, get notifications, etc. When I plug the headphones in, I get sound from them. It's almost as if they are stuck in headphone mode. I haven't gotten my phone wet or dropped it, nothing has been done to damage it. Yet it is without sound. Any ideas on what happen or what I can do to fix it?

iPhone 3GS

IPhones: how to turn off disabling?

Is there a way to turn off disabling (like when someone can't guess your password the phone doesn't allow it to be guess for x amount of time)? My sister likes to take my phone and guess passwords so i can't use it.

How to get rid of the chip on my shoulder?

I'm a 19 year old female and have a huge chip on my shoulder about how poor my background / parents are. As soon as I turned 16 I have had to work to provide for myself because my parents couldn't afford to and I have paid for everything valuable I own including my clothes, phone, laptop. There's no such thing as christmas or birthday presents in my house. I started University last year and have paid for all my books / rent / buses / groceries etc myself, I have never asked my parents for money because I know they don't have it. I work every hour I can get and I'm still struggling to get by, I worry about money all the time to the point I can't sleep and I'm 19! Yet my friends and boyfriend get everything handed to them, they have never had to work a day in their lives and it actually makes me so angry - their parents pay their rent and everything, I don't even think they check their bank balances because they know they can just ask mummy and daddy. I always think how come I wasn't born into a rich family, why do they deserve nice things when I work so hard and get nothing. I know there are people way worse off than me homeless, or starving but I find myself resenting those I love when I see them with their flashy iphones and their expensive clothes when they don't do anything and then there's me working relentless as well as volunteering and studying and I have nothing. How can i stop being so jealous I guess I could say? Haha

Nokia lumia 920 Vs Iphone 5?

To be fair The Lumia 920 is very much more stylish, and young. Iphone 5 is more of a business phone, or feels like it. So it seems like the lumia would fit me best.

The lumia is so hard to break compared to the iphone, but then again the iPhone would come with a 1 year thing, so if i broke it i'm able to fix it for free for that whole year, but either way i generally take extreme good care of my phones.

I had an iphone 3gs so i'm very used to having an iphone now. I also use a macbook so i guess in a way having an iphone would be better for me. Though i've just seen the nokia lumia 920 and was very impressed by it, but i'm stuck in a 50/50 situation. Any Help guys?

Thanks

Added (1). Isn't nokia lumia 920 slow though?

Whatsapp 2.8.6 crashes when downloading pictures?

Yesterday i updated my whatsapp to latest version 2.8.6 on my iPhone 4, it worked well but whenever i try to download a photo that I've received it crashes and come out to the home screen. Its really irritating that i can't receive photos anymore.anybody facing the same problem? Please anybody have a solution for this?

ps. I don't want to uninstall whatsapp then download it again

What will happen for selling a stolen Iphone 4s?

That my brother truely didn't know was stolen because he sold it sf or a friend I'm asking because he has to wait till the 20th to see an attorney just don't wanna be in the dark he has only one other misdemeanor state Nc

Iphone no longer prints to printer?

I have an HP CM1415 it is connected to a wireless router via an ethernet cable. The printer prints just fine when a computer is sending a print job to it. Lately, it seems to have a problem when an iphone sends a print job to it. The iphone detects the printer, and it seems to send the print job to printer… But the printer does nothing.

Here is the interesting part, when using the HP eprint app on the iphone, the printer will print. It only will not print when I print via the print button on the I OS software. It used to work both ways, so I know it should work.

Does anyone know what the problem could be? Could it be on the printer's side or the iphone's side? I already did a factory reset on the printer and the problem still persisted.

Sorry if my description of the problem is a bit confusing!

How to track another iphone?

Yes this is a sneaky question. Yes I need some help. I recently got into a conversation where I was told that if you had an iphone you could track another one. My husband acted stupid at the time but it has transpired that he did know about it and that he has "on occasion" looked at me to see where I was. I have absolutely nothing to hide! BUT I think he has and my logical thought process is that if he can look at my whereabouts, he must have access to my phone which in turn must mean that I'm able to look at him. He is away this weekend. Is there anyone that can help me know where to look to find this out?