How much is my iphone 5 64gb worth?

I have plans to go to apple and have it replaced with a referbished one cause there's somethingv wrong with my iphone 5. When i get the referbished iphone 5, i have plans on selling it. So how much can i sell it?

I have an Iphone 4 with a broken lock button but need to get it through new airport security?

I'm going on holiday in a few days and my Iphone 4 lock button is broken meaning I can't turn the phone on or off with the button. I can turn the phone off with AssistiveTouch but can't turn it back on without plugging it in. New airport security rules is that it's got to be 100% charged and show proof of being able to be switched on or off, does anyone knows what I can do?

I was thinking about leaving the phone to die out and putting it in my suitcase, would this be allowed?

Added (1). Would I be able to ring up Manchester airport and ask?

What other carriers Rogers SIM card work with?

I have an iPhone 4s and is locked to Rogers when I first bought it. I do not want to spend $50 on unlocking. It just seems that Rogers is very expensive and hope that the Rogers SIM card would work with another carrier?

I beg before you please tell its iphone 4s?

Friends i have australian iphone 4s, it can't be repaired by apple care in india (my country) and its also out of warranty, when i record video the voices being recorded are bit low, i'm not using any case etc,
please tell if i replace its top mic from local mobile repair shop, will its sound be louder?
sorry for bad english

Load finished apps onto iPhone?

Is there a way to load apps that you downloaded from older iPod touches, and then put it on the new one just by file? For example, I have the Free Memory app file that was taken off the store. How can I put it on my new iPhone 4s? The method doesn't have to be apple approved.