Verizon sent me a replacement iPhone but my phone works again?

I asked Verizon to send me a replacement iPhone 4S because the one I have had a home button that got stuck. Now that I got the replacement in the mail. I dropped my iPhone. Now the home button doesn't get stuck anymore. Should I still send it in? Or return the refurbished one back?

Where's the Calculator app on my Iphone 5?

Ok I haven't deleted it or anything, I can't se it on my app-list but when I search for it, it comes up as a top hit. This is the first Iphone I have owned so could someone please tell me

Added (1). *see

Car racing games for IPHONE 4

Can you suggest me some good FREE CAR RACING GAMES for my iphone 4.
WHICH ARE THE BEST FREE RACING GAMES BY APPLE?

Where can I find a Dragon City (on FB) free hack?

I'm looking for a free hack for Dragon City on Face Book, but I can't find a good one, that works on my Mac Book, because most of them are only for Windows. And there's a second problem, sometimes when I found a good download, I fist need to participate at something, like 'Win an Iphone!' or something like that. I don't want to do that. Can anyone please help me? Thanks x

Added (1). I'm sorry for my bad English

Why does everything I own break or gets lost?

Why does everything I own break or gets lost?
Broke my speakers (dropped onto the floor)
Broke my laptop was connect to my phone, which I pulled and the computer come crashing down.
Broke popcorn maker, melted plug onto my hotplate.
scratched my frying pan while getting the plastic off my popcorn maker.
My fish tank broke, god knows why.
Got wet on some rocks my iPhone was in my pocket, stop working.
Punched my iphone because it would not turn off (alarm 3:00am) broken.

Things I've lost
Wireless receiver to my mouse.
My key to my unit.
fossil that I found,
pencil cases (8*)
Calculators (4*)

Added (1). But you see I've near dropped anything. Also it's noteworthy that the speaker was my fault because it was connect to my laptop and come crashing down when I pulled it, however my laptop was not (did not pull phone, but tripped over power cord) it was unavoidable and was broken before that.

Added (2). @Bluebellbkk
you might be onto something but here is where it gets strange.

Broke my speakers-my fault pulled speakers come crashing down.

Broke my laptop tripped over cord in some area of space not my fault.

Broke popcorn maker, melted plug onto my hotplate- small area and had contacts out not really my fault,

scratched my frying pan while getting the plastic off my popcorn maker-know that was going happen but I had to get the plastic off.

My fish tank broke, god knows why- not my fault was pre-owned and over 20 years old.

Got wet on some rocks my iPhone was in my pocket, stop working- told my mum this was going to happen but forced me to take it anyway.

Punched my iphone because it would not turn off (alarm 3:00am) broken- my fault and maybe thoughtless.

Wireless receiver to my mouse-, ore misplaced and that thing is 1 cm big, and was lost due to a move.
My key to my unit- through out with takeaway food, maybe thoughtless for not looking in bag.

fossil that I found- was 6

Added (3). I'm going with bad luck since I have fast reflexes.

Is there anyway to restrict iPhone data use?

I have an iPhone 5, and as my family don't have any ADSL Internet (Telstra refuse to put in the needed cabling for the foreseeable future) we don't have much in the way of Internet. I get 700mb of Internet, although I manage to go over every month from browsing (average site is around half an mb, visit around 100 sites a day)

Is there any app I can get that will set me out an allowance of data for the day and then cut off or alert me when I reach the limit? I don't want to keep running over my limit, it's running down my parents and I can't afford to pay the rates

Can I pay for apps in the App Store via PayPal?

Now that I have an iPhone 5 and an available jailbreak won't be out for some time, I guess I should buy the apps that I really want. I was wondering if you're able to pay for apps via PayPal or does it have to be strictly card, because I can't find any option to add a PayPal account.

I lost all my photos on my iphone

I recently had to get my phone restored (so my phone was wiped of all data), and then went to a concert, took photos and videos and when it came to reloading all of my old information onto it, forgot about them. Is there ANY Way I can get them back? I can't find them and I need them.

Why isn't my iPhone being detected by my PC?

Yesterday my iPhone 4S stopped being detected by my PC. It does not charge and the computer does not interact with interact with the phone in any way. I have no idea how to fix it, I use iTunes heavily for backups and file transfers. I do need this functionality.

Added (1). It's not the USB port. I've tried plenty of ports.

Have also tried rebooting the PC and the iPhone, as that's just troubleshooting 101.