how to get an itune gift card code

You don't need an iTunes gift card code - but if you want one, and if iTunes gift cards are available in your country (all gift cards are country-specific, they can only be redeemed and used in there country of issue), you will have to buy a card

You don't need to enter an iTunes gift code code, you can use your credit card as a payment method instead - iTunes gift cards are not available in all countries, and they are country-specific (you wouldn't be able to use one that was issued in another country).

If you want to download any content from the store then yes, you will need to use an Apple id (also referred to as iTunes account).

If you don't have a credit card and iTunes gift cards aren't available in your country (if they are then you can get them from Apple, and possibly supermarkets, electronic shops etc) then there are instructions on this page for how to create a new account without giving a credit card number (which should allow you to download free items) : http://support.apple.com/kb/HT2534

if i am from singapore do i need to enter a gift code. i am a new user of ipad mini 2

No, the gift code field is optional - and I don't think that iTunes gift cards are available in Singapore, so you won't be able to fill it in anyway.

I am in Ghana, how do get a gift card or code?

iTunes gift cards aren't available in all countries, it's quite likely that they aren't available in Ghana

Hey I need one gift c

Isn't the gift code is available