My iPhone 6 fell in the water and now the sound doesn't work?

I was sitting by the pool when my brother let a pole fall on me which knocked my iPhone 6 out of my hand and into the pool. I got it out really fast though. Because it was just on a step but it was completely underwater. I out it in a bag of rice because apparently that dries the water out and today I got my phone out and everything worked besides the sound. When I play a song or a video or whatever, no sound comes out… And when I try to put the volume up or down, at the top it says "headphones" as if my headphones were plugged in which they're not. I looked in the headphone hole and there was some rice in there but I got it out but it still says the word "headphones" at the top when I try to raise or lower the volume. And no sound comes out either. When I plug my headphones in, the sound DOES work. The sound only works with my headphones plugged in. What do I do?

Iphone 5s screen recognizes finger on screen?

So my iphone 52 which i bought a few months ago has had a really messed up screen lately, the phone automatically taps on apps and things when i'm not even touching the screen, making it near impossible to work with it.

I think the reason behind this is the text message people have been sending recently that automatically reboots your phone, because my friend sent like 50 of them at the same time, and ever since then my phone has been like this.

Help!

Added (1). I have tried the hard reset methods many times.

How to remove Icloud ios 8.2?

My relative has brought an iphone for me as gift and it is not block but the icloud is open and he forget the password.So how to delete the Icloud. I have gone to bazar they asked me 10000 r.s means 110 $.
And I don't have that much.

App that plays playlists offline?

Spotify is a rip off and I'd like an app (for iPhone) where I can make playlists that play without Wi-Fi or 4G. I used to have one, but it was on my old phone and I didn't back it up, plus I've searched through all the "purchased apps" section. I think the app was taken off.

How much will I have to pay for an iPhone 6?

My family has AT&T and I'm eligible for an upgrade. I want to get an iPhone 6 but IIm not sure how much it will cost monthly. Both of parents have unlimited talk and text and so do I. We also have a tablet. All four devices are on the 10 GB mobile share plan. How much will I have to pay monthly for the iPhone 6?

Added (1). The iPhone 6 will probably be on a two year contract.