Who is providing a gun permits in state of Minnesota
That depends. If you were judged to be mentally defective, you can't buy a gun in Minnesota or anywhere else in the US.
Yes, if you follow the laws
Blue Book of Gun Values
Depends on whether you can legally have a gun where you live, and if the gun was theirs to give you.
No.
Gun safes are not illegal
Felons cannot own or possess gun in any U.S. state, unless the felons rights have been restored.
20 years by law
Minnesota requires you to have a permit to carry a handgun. Permits are not issued to persons under the age of 21. See link blow to Minnesota gun law.
minnesota rocks from,nash
No