In the U.S. yes. Federal law requires the gun to be unloaded and inacessible, unless state law allows something else. Some states allow you to have a gun in the car loaded and accessible, some states don't. Check out the related link for more information.
You will have to specify mode of travel, starting location, ending location and purpose for having the firearm.
Beretta is a MAKE of firearm. It does not tell us the model or caliber, which will determine the maximum range that a fired bullet can travel. You need to specify.
A shotgun is a firearm. A revolver is a firearm. A pistol is a firearm. A rifle is a firearm. If you want even more specific -- A Remington 1187 is a firearm (shotgun). A Smith and Wesson 686 is a firearm (revolver). A Sig Sauer P226 is a firearm (pistol). A Colt 6920 is a firearm (rifle).
No, Sword is not a firearm.
Design of the firearm
Warrior + firearm
yes
No, he cannot have a firearm.
That depends if you are talking about the firearm or about the cartridge.
I saw a firearm.
Condition of firearm and how desperate you are.
Yes, a shotgun is classified as a firearm.