Does the iphone5 work internationally?

I'm going out of America with my newly bought iPhone 5. I'm under Verizon contract. Will my Internet and texting and apps like twitter and Instagram work in places like Philippines?

Unknown number keeps texting me a blank message?

A number keeps texting me a blank message, but instead of a number sending it to me, it simply says Unknown. I thought it was an error in something, then it happened two more times. Is it a person or just something messing up? I mean they're not saying anything, it's like they clicked the space button and sent the message. By the way, I have an iPhone.

Is it possible for me to get an iPhone 5 on T-mobile?

T-mobile doesn't have the iPhone 5 on there network and I looked at other carriers and there plans don't do what I need. Is there anyway I can get the iPhone 5 and then switch it to T-mobile? Or somehow get T-mobile plans on an iPhone 5?

How to put music from iTunes 11 to iPhone?

With the new iTunes I have no idea how to take music I've purchased or downloaded on my iTunes library on my computer and put it on my iPhone.

Anyone know how to help me? I want to do this without syncing my iPhone to my music library on iTunes on my computer. I always used to be able to do it without syncing.

Wrong email on App Store on iPhone?

I'm trying to buy something and I keep getting the message that the password is incorrect. Well, I had to change my email and no longer use the old one, but for some reason the old one is popping up when I try to buy stuff. I already went into settings and entered my new email and password there.

How to make sure my iPhone is safe to be used by others?

Like if I want to show a friend a photo and they start going through other photos and come across an embarrassing:
Photo
Text message
Web history (like once my friend saw my history of how to get rid of clammy hands YIKES!)
But anyways is there other things I should check like any other things I'm missing
[please make a list]

Straight talk with iPhone 4s device blocked from data use?

A few days ago I purchased an unlocked iPhone 4s. Not jailbroken, but unlocked. Then today I got a microsim card from straight talk and activated it onto my iPhone. Everything worked fine when it was activated, I was able to call text and browse the internet. Then while going through settings I accidentally clicked "reset network." Now when I try to place calls it says "We're sorry but this device has been blocked from network use. Please call your wireless service provider."

I did call them, but since it's a friday night I was on hold for an extremely long time and ended up using the service to call back when a representative was ready. I'm hoping I can find an answer to this problem before I even have to call straight talk. However I will call every day until the problem is fixed.