No ... but their may be an age requirement.
Nope. Pellet guns are fairly safe to use.
Contact your local police
This all depends on the country and location where you live.
Yes.
In most states you have to be 18 to purchase an air gun, BB or Pellet, (Not a Air soft gun). It's best to check local ordnance's first. No license is required.
It is possible, Yes, But it depends on the caliber, Weight of the pellet, the FPS of the gun. I suggest using a Pellet rifle not a pellet gun. I suggest a head shot using hollow point pellets. Also a license may be required to hunt the goose
No, you do not need a gun license to buy magazines.
It would help if you stated the model and the condition of the pellet gun. Without some information it is not possible to answer you.
In most states you have to be 18 to purchase an air gun BB or Pellet, (Not a Air soft gun). It's best to check local ordnance's first. No license is required.
Can not be answered without knowing how heavy the pellet is, how fast it will be leaving the muzzle, pellet shape, location where it will be shot.
In most states, you just have to be 18 years old.