How to delete other data off my iPhone?

I have an iPhone 4s and currently my iPhone has 3GB of storage taken up by "other" data. I've tried everything. I checked my usage and I delete my e-mails as well as my texts so why do I have so much of this other data? I don't have any apps except for Facebook right now because I don't have enough storage for anything else. I checked the Apple website and nothing on there helps because I've done it already. I've cleared my e-mails, I only have one app so it's not that and there's nothing else on my phone that could take up 3GB of "other" storage… I really don't want to restore my phone but if I have to then I will. Any suggestions would be helpful please?

Can I sync music not purchased in iTunes to ICloud?

We recently received a new computer and in the transfer I missed a few files containing some of my music (about 1200 songs approx.) the music is still on my iPhone, I'm just concerned that when I sync my phone with my computer I will lose all of that music. I thought iCloud would be a good way to back up my music, but I think iCloud only covers music purchases via iTunes, if this is true any suggestions as to how I can save my music and get it back on my computer through my phone… Or any other way? (other than repurchasing my music over again.)
your answers are appreciated!

IPhone 4 fix, Stuck at apple logo?

My iPhone 4 is on ios 6.0.1 and everytime i try to turn it on it will always stay on apple logo, It worked fine after my phone was completely finished jailbroken from Redsn0w program with the ios 6.0. Cydia was install perfectly and all that. I installed a few other programs from cydia such as siri etc. Now when i turn it on, it gets stuck on the apple screen logo.

I'm able to successfully load the ios 6.0 from latest Redsn0w with the "Just Boot" And it turns on and works perfectly fine. But when i wanna restart my phone, it get stucks on the apple logo. Is there a fix to this? My computer says the phone is perfectly connected to the computer and i'm able to view files and such. So i know it still loads up, just stays suck on apple logo. Is there any fix to this?

Someone got my cell number off the internet?

How is this possible? Any way to block them with iphone? They were also threatening to hack my computer

Added (1). No, i did NOT post my number ANYWHERE, and it can't be found on anything i've posted on or put up. I just don't put it on the internet. This is why i'm so confused, my cell number isn't linked with anything I've done the internet

How to sync iphone 4 to 2011 ford fusion xlt 4wd?

Okay so i went and got a 2011 ford fusion (29000 miles only) and now i want to sync my iphone 4 to it. I have looked up how to do it on the internet and every option i've found doesn't work, i know that i could go to the ford dealership but i would like to do it myself. I have turned on the bluetooth on the phone, then i have gone in and pushed the phone button in the car and then i've done the search and scan and tune options none of which help or even came close to finding anything. Is there any other options?