No
Only if the airgun has a scope rail designed into the gun. You will also need an airgun scope not a firearms scope.
Scopes can be bought without the requirement for a firearms license in the United Kingdom and the United States. The company the scope is bought from does not have any effect on the requirement for licenses.
Whether you do or not depends on where you live. As for countries not requiring a licence to buy .22 ammo, the United States is one.
The BATFE website has the information you are looking for.
No, you do not need a license to buy a gun magazine in most states in the United States. Gun magazines are typically considered firearm accessories and are regulated differently than firearms themselves, which may require a license to purchase.
In the US, you start by applying to the BATFE for an 01 Dealer Federal Firearms License. That means you ALSO need a premises that is zoned for business, secure storage for firearms, a business license, etc etc etc. You will also need your local Chief Law enforcement officer to sign off on your application, and the money to pay for the license ($200). Then you add the Special Occupational Tax (SOT) for being a Dealer in Class III firearms ($3000) See the link below for more information.
You don't need a license to buy a car, but you need a license to drive a car on a public highway.
No, you do not need a gun license to buy magazines.
That will depend on what license, and where it is issued from. There is no one "firearms license" in the US. A few states DO require a license to BUY a gun, most require a license to CARRY a gun concealed, and you must have a DEALER'S license to sell guns. It may take minutes, or months.
The previous answer is wrong you do not need a license to buy a car
No, you do not need a real estate license to buy your own house.
There is no "license" to buy Class III firearms (fully automatic or machine guns). The transfer of each machine gun must be approved by the Federal Bureau of Alcohol, Tobacco, Firearms and Explosives. There is a $200 transfer tax for each gun purchased.