Laws on this vary by jurisdiction. We'd need to know the location you had in mind in order for us to be able to answer this question.
Yes, in the USA, you generally need a gun license to purchase a firearm. The specific requirements vary by state, but most states require a background check and a permit to buy a gun.
While some states DO have state requirements, you would start with the Federal government- the BATFE, since under Federal law, all gun dealers must hold a license issued by that agency. You will also need a business license, meet zoning requirements, etc, for that to be issued.
Requirements will very from state to state. In general, ANY license expired for 3 years will require reapplying as if for a new license.
If you mean in the U.S. it depends on state law, but also, what you mean by "gun license." Each state sets its own requirements for issuing handgun carry permits. Most states do not require a permit for owning a handgun.
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.
It depends on several factors; Where you are located and exactly what you mean by "gun license." Do you mean a license to carry a gun? A license to purchase a gun? A license to build guns?
Can u get a license for a gun with a marinara charge?
You don't need a gun license if you are 25 but if your under 25 you do need a gun license
No, you do not need a gun license to buy magazines.
No
Yes, you can. License requirements vary a GREAT deal from state to state, and country to country. You did not say where you live, so cannot comment on what license you need, if any.
You never need a license to have an Airsoft gun.