Huge 'Other' storage on my iphone?

I have an Iphone 5 16gb jailbroken and i went to download an app today and it told me insufficient storage, so i went into settings>general>usage to find out what is taking up all my space and the largest file I had was music (2.8gb). So I was pretty confused and so I plugged my phone into itunes and and there I discovered the problem, 7.51gb of 'other'. So after doing some research and finding out that it is basically just temp files and such I went through my phone and deleted all messages and music off my iphone but that did nothing to the size of 'other' So I'm perplexed as to what I should do, I have already run icleaner pro which only removed about 400mb and none of my current apps have more than 30mb in documents and data so I was wondering if anybody had any solutions to this stupid problem. And please do not tell me to restore my phone, that is not a solution to the problem, your just erasing your phone.

What are some good free music apps for iPhones?

I currently have McTube Pro and it's decent, it just takes up way too much storage space. Basically, on McTube, you're supposed to be able to download YouTube videos, including songs on YouTube. The videos you download are still accessed through the app, though. My iPhone is full and I need to clear up some storage space fast! I know I can delete pictures and stuff, I've deleted practically all my unnecessary apps and even some of the ones I kind of need. My McTube Pro app is taking up 5GB because I have like 600 songs. I know about like Pandora and iHeartRadio and stuff but I want one where I can choose specific songs, possibly one that works without Wi-Fi or good service because I have Sprint which had spotty service. I don't mind paying a few bucks for the app, I just don't want to pay a dollar per song like on iTunes, any app suggestions?

IPhone 4 - Won't hold charge, very very hot to touch?

Most of the time, it won't charge at all. I'll plug it in for hours and it'll stay dead. I've tried 4 different plugs, 2 different USB adapters, 3 different computers' USB ports and multiple home outlets.

It finally charged today to 100% but within 2 hours, it's down to 20%. I got 3 texts in that time, but otherwise, haven't used it at all. It's extremely hot to the touch. It got hot when I had it plugged in before and it wasn't charging, too.

I've double-tapped the home button and closed All open apps and it's still doing this.

Please help! I need my phone for GPS on Friday cause I'm going on a trip and don't really know where I'm going.

Why can't I download music on my iPhone?

I've downloaded music before but now it says that I have to answer security questions. I didn't have to answer security questions when I signed up. Do I have to make a new account?

What free apps or websites can I watch english dubbed anime on my iPhone?

There's a certain series I want to watch called Amnesia. I do believe it's a Fiction/Romance anime and I have tried many websites and apps but none have either the english dubbed version or the entire series altogether. I understand most websites might not work because of some plugin that isn't available on mobile devices, so if anyone could suggest apps that would be greatly appreciated! Thanks!

P. S. I've already tried the websites
Iani.me
animefreak.com
Ect.
So please suggest mostly apps unless you know of a website. And if you want, you could suggest some more good animes you know of!

I Need tips on getting my learner's permit?

My mom and i made a deal and she said she will buy me an iphone 5s when i get my permit. I need tips on how to pass the tests. I been studying and i took drivers ed already.

Can I put an iphone 5a a7 chip in my 5c?

I was just curious if it is possible to put an iPhone 5s a7 processor chip and or battery in my iPhone 5c? Please refrain from the generic mean and trollish responses of "why would you want to?" Or "just buy a 5s". I'm aware that it is a strange question and that I could easily just go buy a 5s thanks. I have a nasty habit of customizing my iPhones. I just happen to have upgraded to the 5c because it was economical for me at the time. I already have a new colored backing I'm installing, a new colored front glass, and a colored iphone 5 button (I'm also aware the 5s finger print scanner won't work).