Yes if you have a gun permit.
see the link below for UK air gun laws
No, but if you started waving it about in a public place, you risk being shot dead by armed police.
No you do not have to be a gun expert to own a gun. As long as you are of legal age to own a firearm and you do not have any felony offenses on your record, you can own a gun.
No if the gun is not registered in your name , no you can not own a gun. if you do not have license to own a gun you can not have it either
see the link below for the air gun law in the UK
no he didn't!
See the link below for a list of UK air gun laws.
If you mean "own" a gun, no. Felons cannot own or possess guns.
yes
Yes, provided that you hold a valid UK firearms certificate and that all the customs and excise regulations are abided by. If you have any questions regarding these, Google 'UK Customs & Excise' and e-mal them about it.
In US - no. In UK - yes. In Australia - yes.