ITunes won't let me delete songs from my iPhone 3G?

I've been looking this question up for almost an hour now.
I want to delete all my music off my iPhone (because I'm giving it to someone else). But it won't let delete it. It won't even let me uncheck my music. I've synched it so many times. I think I know what to do, i've just forgotten how to get there.
How do you find the "manually manage songs" part? Because I probably don't have checked or whatever.

Itunes could not connect to the iphone because it is locked with a passcode?

First, I forgot my password and now its disabled because I entered too many wrong keys. So I'm trying to restore it in Itune but it said this

"itunes could not connect to the iphone because it is locked with a passcode".

And the *** moment is how can I open if I already forgot the password. Can you guys help me how to restore the phone.

Dropped my iPhone in a cup of water

So I dropped my beloved iPhone in a cup of water.
My initial reaction was to blow dry it - realized after googling what to do & talking to friends that you are absolutely not suppose to do that. Fortunately did not do it for long. My phone is currently in a ziplock bag of rice.

However…
My phone is screen is still on
I tried turning off the phone, but it keeps gliching and turning back on. It will not stay turned off!
I tried to take out the sim card & did not have the proper tools to do so with, so it is still in there. And so is the mechanical pencil led that is now stuck in there after my awful attempt:/

Yeah… Not exactly the smoothest night for me…

Any advice? Is it okay that my phone is still turned on in the bag of rice?

Internet going very slow out of nowhere?

In my room I use my laptop with wireless connection from my mom's router in the living room, the next room over from mine. Since two days ago my internet has been going very slow, but my laptop still runs normally. If I try to watch videos on youtube it keeps stopping to buffer and doesn't load fluently, same with the thumbnails on each page, all load slowly. The connection signal seems to be normal and even says "excellent' when looking at it's status. I also noticed if I try using my iphone with the Wi-Fi connection it will run slow, but faster when I turn Wi-Fi off.

My laptop is regularly checked for viruses and scans etc, I cleaned out cookies just to see and updated flash, still same problem. If it matters I'm using a Hp pavilion dv6 with comcast internet.