No. No license is required.
It all depends on the country or location where you live. There is no universal answer to this question
no
No.
Do you mean an air Rifle? NO, Not in the United States.
If it fires a projectile, it is classified as a firearm and you will need a licence for it. Your local District Firearms Officer will be able to advise you in more detail.
yes
You need a license no matter where you live or how small the caliber. A firearm is a firearm. No ifs, ands, or buts about it.
You need to consult a lawyer
Only NFA regulated items. For a typical rifle or shotgun, no.
Yes! You can have an ordinary rifle and you don't have to have a license. But a Full-Automatic, military issued rifle needs to have a license. MAKE SURE YOU HAVE A LICENSE FOR IT!
You must have a license to own a BB or Airgun in Australia and be 18. If you belong to a licensed shooting club and pass a test you can be 12 or older