Other taking up all the memory on my iPhone?

The space labeled "other" is taking up All the memory on my iPhone. It's taking up about 5.2 gigs right now, which is far too much, considering I have hardly any photos, music or data. Also, I just reset my phone so I have no apps, and it is still taking up that much room. How can I go about deleting what is in the "other" category.

Added (1). Also: my iPhone is not jailbroken

Inserting MetroPCS sim card into Iphone 4/4s?

OK, read this question carefully please. This is more for a technical expert. I currently have a MetroPCS android smartphone with a MetroPCS sim card. The sim card is a regular sim card (not a micro or a nano sim card). I'm aware that if i purchase a sim card cutter, that i can convert my regular sim card into a micro sim card. If i insert this new MetroPCS micro sim card into an unlocked Iphone 4/4s, would my MetroPCS service work on my Iphone?

How to unsync my Iphone's photos?

I accidentally synced my Iphone with my computer's photos. So now I have 800 extra photos on it and my iphone won't let me delete them. Also, I synced it with Facebook, and I have no idea how to synced it. Any ideas?

Connecting iphone to ipod using iMessage?

If I have an iphone with a data plan and unlimited texting and also have an ipod touch 4G, can I link the ipod to the iphone so that any texts I receive on my iphone will go to the ipod? If so, what information is required of me?

Can a single power point handle this?

I've chosen to tidy up all my cords in my room and to do so I've put a double adapter into my single power point and run a 4 point power board off each of the double adapter points.
Just wondering if it can handle this.
Powerboard 1:
42inch tv
Speakers
Xbox 360

Powerboard 2:
iPhone charger
Lamp
Laptop charger

Iphone cord not charging, cord not ripped?

Me and my sister have ipod 5's and we got a new charging cord 2 weeks ago and when i went to charge it today, it wouldn't charge, not on the wall adapter or in a usb port, already tried blowing into both ports, and wiping them off. Any help? Also this is like the 4th charger i've had since christmas and they all seem to break, any help with that? Best answer gets 10 points.