My micro sim card won't fit in my iphone 5?

I have Verizon wireless. I had a Droid 4 until it recently stopped working. I don't have a warranty for it. I have about 8 months left until I can upgrade. I needed a phone so I bought a Verizon iphone 5 off eBay. The problem I have right now is that I can't fit my Micro Sim card that I had in my Droid into the iPhone. Buying a Nano Sim card isn't a problem. The problem is I don't want to change my phone number. If I buy a Nano sim, do I have to get a new number? Or can Verizon transfer my current number, onto the new sim?
Please help. I don't want to cut up my Micro sim and turn it into a Nano sim. I feel like that's too risky and I might accidentally break the card.

Why isn't the Wi-Fi on my iPhone 4 working, even though the signal is strong?

It worked this morning. It worked when I went out for lunch (Starbucks has free Wi-Fi, duh.). And it worked when I went shopping (at Target.
However, when I came back home around late afternoon it stopped working. I have Wi-Fi in my house, and even when the signal is strong, it just keep loading it. No usual checkmark that shows it works. The Wi-Fi works fine on my brother's 3DS and we already checked the home computer router. I just don't know what's wrong.

Does playing games harm iphone 5 battery?

So i really got fond of one game which i play a lot on my iphone 5. I charge the phone once a day. I don't play the game while my phone is being charged. So will the phone battery lose its life?
I don't play it all the day, obviously.

Added (1). I play Empire: Four Kingdoms which really doesn't take a lot battery.

Instagram is deleting my comments?

No, its not the users, its ig! It's so annoying, I can't hashtag, it won't show my comments on people's pics, Its so annoying! At first I thought it was my Android, but then I tried my moms iPhone and iPad, it still disappeared. I'm beyond annoyed and want to know how I can fix this.

My phone is deleting my contacts one by one? (iPhone 5)?

So lately, I'll go to check my messages and see a bunch of random numbers. Then i go to click on the conversation and realize that i know the person and that i've added them into my contacts before. Obviously, the thing everyone would do is just re-add them… BUT! THEY DISAPPEAR AGAIN! I've tried restarting my phone (off/on) with no luck. It seems it is doing this to mainly the text message people. Not so much iMessage… I don't want to reset my phone completely and lose every single contact… Does anyone know a solution to this?

Vine password reset not working

I got a replacement iPhone today so I downloaded the Vine app again and forgot my password so I went to change it and entered in my email and it says "There was an error resetting your password. Please try again." and I keep trying but it isn't working. What do I do? And no I did not use my twitter or Facebook to sign up with vine.

Iphone 5 on ebay with bad ESN?

I'm looking into buying an iphone on ebay, but some say that they have a bad ESN… What does that mean? I want to buy a phone from whatever carrier so i can then activate it at metro pcs… Ao if the phone has a bad ESN, can it still be unlocked by metro pcs?

A good camera to record videos?

^^ my friend and i want to start a youtube channel, and we can't afford to buy a professional camera, at least not now. I want to buy a phone that has a good quality for videos
Like Nokia lumia 1020, Iphone 4. With the focus fonction: D
but those two phones are too expensive. And i don't need all the things they provide i just need a phone with a good camera. Any suggestion guys?

How to fix an Iphone 5 that was dropped in water

I dropped my Iphone 5 in the toliet today, and quickly picked it up and dried it off. I dried all the little cracks, and speakers, blow dried it on low. And my speaker which had been broken before started working again, i could hear calls, listen to my music, charge my phone, everything. Then i decieded i would put it in rice over night just to be on the safe side, well i would turn it off, stick it in rice and walk away and hear it ring, and i thought maybe i didn't turn it off all the way, after doing this several times i tried to turn it off and watched it the whole time to make sure it turned off, and sure enough it didn't. What should i do? I have it in rice right now with the phone off, but the battery will die very soon. Should i try to charge it? Help!

Added (1). Its in rice right now, and i can't just go out and buy a new phone, their like 700 dollars, so if i can fix it i'm going to try everything.