I dropped my iPhone 4S in a pool?

It's still alive but the home button occasionally stops working, voice control pops up frequently, the lock button is stubborn, and when I turn it off it won't stay off. After it fell in I put it in a bag of rice and kept it in there all night and put it on the dashboard of my dads car for an hour so it would heat up, is there anything else I can do? Is there anything the apple store can do?

If someone texts me internationally would I have to pay?

I have a friend from uk. I live in us. We both have iPhones so we usually iMessage but for some reason my iMessage was off so he send 4 texts to me as regular text messages. Would I have to pay for him texting me?

Added (1). I didn't respond to the texts btw

My iPhone won't let me save pictures?

Someone please help me! My iPhone 5 isn't letting me save pictures or screenshot pictures either. I thought it was to do with my memory/storage so I put all my pictures on the laptop so I have lots of memory now and it still isn't working. Does anyone know what the problem could be! Urgent!

How to fix my iPhone 4th Gen?

Yesterday I dropped my iPhone 4th Gen and everything else was fine except for the power button on top of the phone, and now I can't press it down so it won't turn off. So is there any way I can pop it back up?

IPhone 4 (four) or 5 (five), Apple - emabressed?

On Feb 18, 2013 about 11:30, my grandmother bought me an iPhone 4 (four). I was very very happy with it until some idiots are driving me mad about how bad it is compared to other phones, etc.

I'm not sure if I should buy an unlocked one or not (5) after reading (http://www.amazon.co.uk/Apple-iPhone-16GB-Black-Free/dp/B0099UK4JE) - Can I have some 'advice'.

Thank you.

Added (1). I meant: EMBARESSED.

Why is my inbox suddenly completely empty?

All of a sudden, there's no mail in my inbox; not on two computers, nor my iPhone, nor for a second Yahoo account I have. All other folders are intact, and new email shows up in the Inbox just fine. What on earth?