Using an iPhone without a PC?

Ok, so I was looking into buying an iPhone, but my PC broke ages ago, and I know that you need to sync an iPhone for music ect. So I was woundering, is it possible to use an iPhone as normal without the use of a PC at all? I don't really need music, so there's nothing I need to sync for.

Babysitting somoneone elses kids for the first time?

So i'm 14 (will be 15 come June)
and I've old babysat my little sis (6 years old)
and tomorrow Ill be babysitting a 2 1/2, 6, and 10 year old
My parents payed me $5 per hour but I don't know what I should ask because I heard thats on the low end
also should I allow the 10 year old to go on the computer or iphone since I'm guessing he/she might not want to hang out with the babysitter
also any ideas of stuff I can do with the kids
Ill be there for 3 hours

How to get more memory on my iPhone 4S?

About three weeks ago I purchased an iPhone 4S 8gb. I know that 8gb isn't a lot. I currently have 7 apps downloaded (Vine, Kik, Instagram, snapchat, Jetpack joyride, what's app and itube)
I only have about 12 photos. I can't take anymore pictures. I also turned iCloud backup off. I used to have about 14 apps, but then I deleted 7 of them because I didn't have any memory left. But even though I deleted them, it's still coming up that I don't have any memory left!
I just want to know if there's anything wrong with my phone.

Virus in text that restarted my iPhone 5s?

I just got a text from a friend and it was a link that said "lol look" with a link I clicked on the link and my phone completely restarted. I'm worried it was a virus. Can anyone help?
Nancy

Is it worth buying a broken iPhone 5 for 90 euros?

So I have an opportunity to buy an iPhone 5 for 90 euros. It doesn't work, but I don't know what's wrong with it. So I'm wondering if it could be so broken that the repair would cost me more than it's original price. In other words, could anything be so wrong with it that I'd have to pay more than it's retail price to get fixed?

My IPhone Music doesn't contain the same music in my Itunes Library?

So I've had Itunes for a while and am going through my music library and deleting some really old songs that I do not care for anymore. My phone is running out of storage so this is why I'm doing this. As I delete them from my Itunes library on my computer, I've noticed that once I "sync" my Iphone, it still contains those songs that I just previously deleted. I'm very precise and this whole thing is driving me crazy! Is there ANY way I can get these songs that I've deleted from my Itunes library off of my phone as well? I want my Itunes Music to look and contain everything JUST LIKE my library on my computer, but this isn't working:/

Also, for this problem, is it better to download the music from the computer with my phone plugged into it or just directly from my phone?

Thank you in advance and as much information as possible would be greatly appreciated!

How did they find out my iPhone password?

My mum and her fiancé asked to borrow my phone to call someone and when i went to get my phone my mum needed it again and she just typed in my pin code? There's NO way she could've known it before and when i asked her how she knows it, her fiancé said, "you can't hide anything"

how the hell is this possible? I'm so angry right now. I feel like i can have no privacy.

is there away he/she couldve found out?
thanks in advance.

Added (1). like i said, she has not seen me type it before, it does not symbolise anything and there's NO way she could ever know what it is? It just doesn't make sense

Why is my iPhone selecting things?

Whenever I click something it puts like, a little box around it and I have to hit it for like a minute before it actually clicks it. It looks like this.
I have NO idea what's wrong or how to fix this… It's a new iPhone 4s I got about a week ago.
It's impossible to slide to unlock anything…
I have to tell Siri to open an app so she'll bring me to the window where I can enter the password…
Please help!

Added (1). Actually I click on things but I have to select them (Siri is saying what that button is…) then I have to double tap it.

How to change a song I bought on iTunes into a ringtone?

So I'm using this website:

http://mashable.com/2013/08/08/free-itunes-iphone-ringtones/#gallery/itunes-ringtones/52129368b05f9d647d0003e2

And it was all working well on iTunes, I'm using a Mac, and then I got to step seven, which is going to tones and your song will be there. My song isn't there. I did everything how it is supposed to be, and I'm on iOS 7, by the way. What do I do to make my ringtone come up? I'm getting really frustrated and all the tutorials I've seen don't show my problem…