Can people watch you from your iPhones camera?

For such a long time I've been covering my iPod/iPhones camera as I always feel like someone is watching me. I'm feeling extremely paranoid (and a little crazy lol) especially because I've encountered weird people on Kik (a messaging app) and I've clicked on links I've probably shouldn't have by accident.
So can people actually watch you from your devices camera?

I had a weird but cool dream (very short dream)? What does this mean?

I was on top of a city (apparently it was NYC, I've never been there before)
As I was on top of the city, on the horizon I seen 3 or 4 suns distances from each other. I was amazed but at the same times shocked. Once they were out of sight, band suddenly I seen a earth-like planet. I told ppl about it, yet I was still on top of the city. And this earth-like planet, looked just like earth, I was taking pics of on my iPhone (lol)
And it stood on top of the statute of liberty and then it slowly moved out of sight and I woke up.

Can someone explain to me the meaning of this?

How to wipe an IPhone of its carrier?

Ok, heres the deal. And if it helps, I live in the USA and so does my friend.

My friend was living overseas in Japan for awhile, and bought an Iphone there. Now hes home, and he bought a new phone. He gave me this Iphone because I figured I could use it as an ipod, but the japanese carrier is still on it and won't let me access the phone.

How do I wipe this japenese carrier off this Iphone? I have read that you can use an active sim card to use your iphone as an ipod, but it has to be the same carrier as the iphone has. And, ofcorse, no one here has a japanese carrier.

I just need a clean quick way to clear all carrier data from this iphone.

Why does the audio in my Mazda3 randomly diminish?

I recently got a 2008 Mazda3, 5 speed manual transmission, and I've noticed that once in a while, like when I take a hard turn, or sometimes put the clutch in, or downshift, or other random occurrences, the music I'm playing, whether it be from a CD or Media like my iPhone, randomly diminishes to just the treble end of the music. Like the bottom half of the sound has just disappeared. It's not just like dubstep or whatever, just any music at all. I'm not complaining that my bass is too low, there's a setting to adjust that. I mean it is literally like the sound is cut in half. It is not until I hit volume up or down does it return, only to be diminished again shortly after, randomly, without my doing. Does anyone know why this is? Do I need a new radio center unit thing? That would really stink because they're expensive and I just don't want to go through all that, or is there something in the car's manual I don't know of with some setting that random reduces what the output of the music is? I've tried the ALC feature or whatever it is, level 1, 2, and 3, and off, and it makes no difference. The audio still does this. Has anyone ever had this problem before? Any fixes?

IPhone 5 warranty issue

I've got 2 questions one is why are these black bubbles shown when I take a picture with the phone camera

Images:

[url=//postimgs.org/apple-touch-icon.png

[url=//postimgs.org/apple-touch-icon.png

[url=//postimgs.org/apple-touch-icon.png

And my main question is why I get this when I enter my serial no for my iPhone 5 I just purchased from second hand high street shop

"We're sorry, but this is a serial number for a product that has been replaced. Please check your information and re-enter your serial number. If your information is correct, you may need to contact us."

Why is my iPhone 4 flickering?

Yesterday I had bought an iPhone 4 from GameStop and it was working great for a couple hours yesterday and then it started flickering. So I did some research and noticed that this has been happening to a lot of people, their suggestions were to turn off auto brightness, which didn't work for me. So then I tried to turn off the phone and turned it back on so it worked all night long, but now today it's starting to flicker again! How do I fix it? I spend a lot of money on the phone and don't want it ruined.