No you can't because you the kindle fire doesnt use the same app store as iTunes. It uses both the android market and the amazon app store. The iTunes gift can only be used on apple devices, although not nesscessarily iOS devices.
You can purchase a Kindle Fire gift card at Amazon and in most countries where Amazon is available.
buy a amazon gift card presumably
yes with an itunes gift card.
I always buy ebooks from iTunes with gift card, and then drop the iTunes purchases to my Kindle Fire for reading on my bed.
yes you can buy kindle books from a gift card
You can purchase discounted itune gift cards at Best Buy. You can save up to twenty percent by purchasing a discounted gift card at Best Buy.
No you can not do that nor can you trade in any gift card for real money
You need an Amazon account to buys things on a Kindle Fire. This means you need a credit card. If you do not have one you can buy gift cards and apply them to your account. I recommend the gift cards because it is very easy.
I do not know! That is what i am trying to figure out stupid.
Yes, you can buy an Apple gift card and redeem it on your account for whatever the amount of the card was.
The Kindle Fire is an Android based tablet. This means that anything available in the Android market is possible to get on the Fire. Pretty common ones are angrybirds or sally's spa. If you get a $25 gift card off of amazon its easier to purchase the apps.
For an Ipod Touch or phone which i use they cost $15, $25, and ,$50 but don't know whether there's a gift card for $ 30