It all depends on the country and location where you live.
No if the gun is not registered in your name , no you can not own a gun. if you do not have license to own a gun you can not have it either
No.
No it's not necessary.
You don't need a gun license if you are 25 but if your under 25 you do need a gun license
In states that require them, it is a license to own (not to carry concealed) a gun.
In New Zealand you have to be 18 to own a gun licence.
No.
You need to define the term gun license. In most of the US there is no license to own a gun. Some states require a license to carry a gun. others to carry a gun concealed. There is also a license to make or sell guns. All are different and have different procedures.
To get a gun license you would need to go into a gun store in the town you live in and ask for the information you need.
No, you do not.
No, nowhere in VA.
yes