My iphones acting weird?

So when I make an outgoing call it doesn't connect. It makes no noise, and the phone I'm calling isn't receiving anything. And the phone is silent, it's really weird. Any idea what this may be?

IPhone S5 screen won't turn on?

I tried to fix it because the screen was glitching and had random lines, so I looked up videos, opened it up and fix the loose cables there. Been trying for hours, now. Had random results, and I even came to a point I couldn't see anything. Then I fixed that and went back to square one, only to **** up again and now the screen won't turn on. The iPhone does turn on (can tell because it beeps/vibrates, even tried the Home/Sleep button trick multiple times.

Really ******* scared I might've burnt off the screen. I can't afford one.

IPhone is infected with several viruses?

Hi. My iPhone is infected with 4 viruses, which I was just warned a few minutes ago? Something popped up and they wanted me to download an app which I have no more space for. It's pretty hard to clear out my phone right now without my mac which won't be avilable to me for about a month. It said it was visiting captain sites an i'm like wtf? I don't want to take it to the app store or the Verizon store because I don't want ppl going through my phone and it's history, I like my privacy and it very special to me ( especially for me being a teenage girl ) and yes I know, it's better to get rid of my 4 viruses then for it to get worse. Is there anyway I can get rid of it on my own? Without downloading any apps and for free?

Will IRS come after me after paying cash for a $10,000 car?

I have a job and has worked through out my life. I just turned 25. However, I have a job where I only make about 1800/monthly after taxes. $1500 goes straight to my savings, my savings is approaching $8,000. However, by the next two weeks I should have $10,000 or more to go cash out on a jeep. I honestly been working day and out, freelancing websites, outsourcing big website projects to India charging a middle man fee, I've been flipping clothes on eBay, I've been flipping Iphones & laptops on craigslist, buying broken iPhones or locked iPhones, I know how to unclock them, and I been doing other odd jobs. Really don't have much proof cause most of these things were paid in cash, I have a few transaction thru PayPal but in 16 days I made $4800. I look to make at least another $4000 by next week and probably sell my piece of **** car for $1000 and Be really close. Will the IRS penalize me or how does this work? Most of my income come from making websites and I charge $500 for each website and I sold 5 just last week paid cash.

Now what,?