Iphone 4 won't take some songs?

I hooked up my phone to itunes and picked up a couple of songs but of the songs that have been checked about 90% come through but the rest of it won't sync. Sometimes when I've clicked sinc the bar showing how much GB is left grows to indicate the songs it wants to add but then it syncs and finishes and the bar reverts to the level it was at before. What do I do?

IPhone 4S screen glitched on me?

I was just on my iPhone 4s and all of a sudden my screen glitched and is now stuck on a black and blue screen.i've tried reseting it by holding the home and lock button and i've tried charging it… Please help

What is happening with my iPhone 4S?

I have a used iPhone 4S that has no damage whatsoever and it use to be my dad's phone and he never had any problems with it but I've noticed that for me, the battery percent is unreliable because it dies at all types of different percentages like sometimes it won't die until completely no battery and sometimes it will die at percentages as high as (so far at least) 87% or anywhere in between so I can never trust it. And the percentages quite a bit will jump around because not even using it for long the battery will suddenly drain 20% or when I put it on the charger the battery will just around to different percents. What's happening and what can I try doing to fix it? It's with AT&T.

What's the deal with iMessage?

I have the iPhone 5 and my American friend gave me her email and I sent her an iMessage. I don't have texting to the US (i'm in canada) but I do have a data plan. This won't use international texting right?

What happens when you preorder a song on iTunes?

I already preordered it, it was AUSTINMAHONEMMMYEAHOHMIGODHOLYISHKABOBSF… Song. Um lol

Does it just show up in your music libaray or something? (First time buying on iTunes) oh and this is straight from my iPhone.

Apple Mac or PC for college? Are tablets necessary?

I'm going to be a science major (bio, chem, that sort of thing) so would a Mac or PC be better? Also, if MAC, Air or Pro?

I have the Galaxy phone and plan to get the 5 in April. Someone told me that all my devices should be of the same brand so I can sync them, but there's no way in hell I'm going to buy an iPhone like BYE FELECIA:'). So do you think what brand my phone is should impact my laptop/tablet?

IOS 7 crashes a lot after iOS 7 jailbreak?

I had the jailbreak ever since it came out. And I began to notice my springboard crashing a lot and some apps crashing immediately after launch. The app crash could be solved with a reboot but will happen again. The springboard crash happens in a lot of cases, but mostly with app launches. The thing that makes my springboard crash the most is the camera app. Doesn't matter which app, as soon as I open or take a photo with the camera in the app, springboard just crashes. I'm extremely annoyed with this problem. I currently own an unlocked iPhone 5 64GB and running the latest iOS 7 firmware. The jailbreak apps I have are Accelerate, Dockshift, Swipeselect, flipcontrolcenter, activator, full name for messages, messages customizer, and no spot iOS 7. If anyone knows how to solve this problem please help me out.