21, which, incidentally, is the minimum age to own a handgun under federal law.
although if you are active duty military and / or have an honorable discharge from the armed services the age limit is waved.
Federal law is 18 for long guns and 21 for hand guns.
AFAIK, no.
In New Zealand you have to be 18 to own a gun licence.
You simply have to be 18 to purchase a long gun, or 21 to purchase a handgun.
That depends on if your state requires a license or not. Most do not.
No because it is part of historical and collectibles any gun over or exactly 100 years old you don`t need a licence.
you have to be 12 in the state of California.
That depends if your state requires a license. Most don't.
You cannot carry a gun in England, indeed you can be arrested on the spot for carrying anything more dangerous than a pen-knife. You also cannot own a gun unless you have obtained a licence to use it for sporting purposes, and you need to be 18 to do this.
No the 15 year old can not dive a car in Mississippi on out of state licence.
At least 21
Depends on what state you are in, you need to be a little more specidic.