How to see IPhone 5 settings no sim?

I found an IPhone 5 that i get to keep and i was wondering how to get into the settings screen without activating the phone with a sim? I wanna know if its unlocked or not and i need into the settings.

Sometimes I can't get incoming calls with my iphone 5c?

I live in a dorm and I guess it's logical that the walls/steel are blocking the signal or I'm interfering with other signals of different carriers. I have sprint. I have full bars and yet most of the time, I don't receive any of my incoming calls. My friends have said that it goes to voicemail after a few rings.

I went to the apple store already, and the guy tested my phone. It worked perfectly fine (I'm a bit biased about the place. As if everything will work in there). So I took my phone back and it still has problems. Sometimes it takes a while for the phone to make the dial sound when I'm calling others.

I have only dropped my iphone 5c probably three times, but I have a strong protective case that covers all over it. So far, no damages (knock on wood).

What's the problem here? Should I just keep taking it back to the apple store? It has a one year warrenty, but I can't seem to prove that somethings wrong it right then and there.

Added (1). When I mean by dropped, it's not a DRASTIC drop. It might have fell no more than 2 feet. My phone case has protected it.

Can my IPhone Display be fixed?

My friend's sister dropped his IPhone and messed up the screen, because I don't own a Phone he gave it to me when he got his new one. I don't know if the issue with it can be fixed, or if I'm just going to be told by apple employees to buy a new one.

From What I know the issue is the pixels/LCD underneath the screen which is causing everything to have a really messed up vibrant blue colour.

Will they fix this or am I screwed

Added (1). I Also have Pictures if anyone wants to see, just ask and ill send them.

Been dieting an exercising for weeks and no weight loss?

I'm about 128 pounds (gained 3 pounds over holidays, normally 125) and i have been dieting AND exercising for about 3 weeks and have had ZERO weight loss. I use the "lose it!" app on my iphone, tracking my calorie intake which is about 1000 a day. On top of eating a certain amount of calories a day, i also exercise EVERYDAY, burning around 300-400 calories. So in total, i'm only consuming around 600 cals a day. I have done this process before and lost 7 pounds in about 3 weeks but this time around, i can't even lose 1 pound in 3 weeks. What's happening? Will i see results soon? Help this is so frustrating!

Added (1). my workouts include running on the treadmill, ellipticals, and ab workouts

Iphone won't sync recently added music from itunes properly?

When I sync my iPhone for iTunes music everything gets synced, even my new music. But since my last sync I've added more music to my iTunes which shows up in the "recently added" section of iTunes. When I sync my iPhone it now only shows my last added music (from about a week ago) but not the ones that I added yesterday. I tried searching for the newest added songs on my phone and they are there just not in the "recently added" section even though they are only a day old. How can I fix this?

There's a gray/silver residue on my iPhone 5 usb cable, what is it?

I noticed the other day that when my usb cable (the actual usb end, not the end that plugs into the iPhone) brushed across my skin it left a dark gray mark that could be easily brushed off, on closer examination it appeared to be shiny, almost like pencil lead. Because i have really bad OCD, I borrowed my sisters ipod cable (ipod 4, I'm not sure if that makes a difference or not) and brushed it on my skin, and nothing came off, I even plugged it into the usb drive that I usually use with my iphone and again nothing. The reason I ask this is because my iPhone appeared to be partially opened when I bought it and because of my OCD of course I go straight to the idea of someone tampering with it. I would just like to know if the gray substance is maybe scratched off paint or something or if could possibly be something dangerous. Note that the gray stuff can be rubbed fully off, but when I return it to my usb drive it is again covered by the gray stuff, but like I said it isn't anything inside my drive because nothing came off on my sisters usb.

Why is my email not working?

I have been using my email all morning and all of the sudden it will not load the page nor is the email working on my Iphone. This just started 30 minutes ago and I have not changed any settings