Game Center iPhone. I want to give my Game Center away but?

I don't want them to be able to purchase in app purchases with my credit card. My iTunes and App Store Apple ID is different than my game center Apple ID so I think I can without worrying but I want some better opinions from you guys, thanks!

How should i charge my iphone 6s? - 1

I charge my phone like two times a day because of the apps and games I'm using, is it okay to charge it twice a day or will it damage my phone(battery)?

Will the iphone 6s proce drop with the release of the SE?

I wanted to by the iphone 6s, but heard of the release of the new SE on the 31st. I still want to buy the 6s (due to the bigger screen, etc.) however I'm not sure if I should wait until the release of the SE. I don't know of the price will drop considering the fact that the SE is almost the exact same as the 6s. Should I wait for the release or should I go ahead and buy the 6s?

How to can hear dog whistles?

My mom has this dog whistle app on her iPhone and she was playing it for some reason and I could hear it loud and clear. At first, I didn't know it was an app, I thought it was the cord glitching out or something. She changed the pitch and I could hear all the dog whistles loud and clear, while she couldnt hear them at all. It sounded like someone was blowing a normal whistle right by my ear, thats how well I could hear it. Is that normal? I'm 18, if that counts for anything.

My Iphone won't download anything? - 1

I have room in my storage, but I try downloading apps that I deleted previously but it won't let me. Do I just need to update my phone? It does need to update.

IPhone 5 Wi-Fi not working when phone case is on? - 1

I don't understand why this keeps happening. I obviously need a case on my phone, but every time I put a case on my phone, the Wi-Fi doesn't work. It's any case- not just certain ones. What do I do?! No one else seems to have this problem.