If you are an adult, a legal resident of the US, and not forbidden from owning a gun because of a criminal history, and are mentally competent, yes, it is legal. There are several million legal gun owners in Texas.
Contact your local police. Find a gun shop and ask. Most will know what is and isn't allowed in their area.
You can only legally shoot someone in Texas if they are on your property and doing something that breaks the law.
No.
In civilised parts of the world, the answer is not legally.
With the permission of your parents, any age.
Not legally. In the U.S. a felon cannot own or possess a gun.
As long as you legally possess the gun, none. Texas does not require registration of ordinary Title I firearms.
Legally, you can't own a gun until you are 18 (long gun) or 21 (hand gun).
yes you can. if you shoot a water gun with water in it, it is sure to die.
FFL to FFL
If you live in a state where machine guns are legal, you must find a shooting range that is a class III dealer and has a machine gun to rent. Otherwise, to legally shoot one, you have to find someone who owns a machine gun and let them take you to the range.
You can legally use any force necessary to preserve your own life, with in reason (equal force).
Knife is to Stab, as Gun is to Shoot.