Can you buy apps on another iTunes account?

I'm wanting to log out of my current iTunes account on my iPhone, log into another to buy/download a few apps/albums and then log back into the first iTunes account.

Will this:
A) Delete the apps/albums I've downloaded?
B) Make the apps/albums show up on all devices linked to the original account even though bought/downloaded on the second?

I'm wanting to do this because I'm currently logged into a shared family account but do not want them to get charged so I want to log into my own account so apple charges me and not the family.

Any possible can allow me to play WMV Files on iPhone 5s easily?

The iPhone 5s has come out quite a long time with 4-inch display, faster processor and very nice new features. Luckily I have one such phone. I'm quite expecting to watch videos on it. Since it must be must be a wonderful experience However, iPhone 5s can't support WMV format for me which is quite boring me all the way. I need one special way that can help me convert to iphone 5s supported format. What should be the possible solutions for me?

I lost my iPhone sims card slot?

So I like lost my iPhone 4s sims card slot on accident. Is it possible to buy a new one anywhere? And how much do you think it'll cost?

Why does my iPhone 5s keep deleting photos from the camera roll?

It's been doing this for a while! Every time I take a new picture, it deletes an old one! EVERY TIME! Like for ever new photo I take or upload, it deletes my oldest one. I thought maybe I need to update my software, and THAT didn't work! I NEED Help! Please and thank you.

Is getting an iPhone 4s now a waste?

I currently have a blackberry and pay £20 a month. The main reason for changing my phone to iPhone is so that I can iMessage and FaceTime with a front camera as my sister has moved to New York.

I realize that there have been been a few new upgrades since the 4s but will it be a waste of my money (it's still £20 a month for 2 years) if I get one? I.e. Will I be able to FaceTime etc or will they bring out some new thing that means I can't download apps etc.

Any help would be really appreciated

I can't transfer my clash of clans?

So recently my mom bought me an iphone 4s because i used to use her phone too much that is an iphone 4s too. I always used to play clash of clans on her phone and now i'm trying to transfer that clash of clans to my new phone, i looked it up on the internet and it says just sign in with your gamecenter and it will ask you to use the clash of clan village that i had on my mom's phone. I signed on gamecenter and it dosent ask, what do i do? By the way my mom's phone is IO6 and my phone is IO7 maybe that might be a problem?