Yes
no, because a tractor is not allowed on a highway even if you do have a license to drive
yes
Yes
yes
Yes.
No, you'll get a heavy fine.
On a highway, no but you can on back roads.
Yes, but ONLY temporarily.
Yes you can operate but its only temporary you must get the licence to continues driving.
Yes, under agricultural laws, it is legal.
I think you have to be licensed to operate farm equipment on a public road, but the minimum age for that is usually lower than for a regular license.
check your state laws.... in north dakota you have to hold a farm operators license/permit