Legally? "No", that would constitute Material Misrepresentation of the Risk (fraud). The company may not press criminal charges, but they won't pay any claims if they find out.
More information about insurance fraud:
not legally, if they find out your address is wrong the insurance company can deny a claim
It is required to have liability car insurance to legally drive in Tennessee.
Legally...no. But, for insurance purposes, yes.
Not legally. However, if you legally changed your home address to your friend's then yes, you could attend her school.
No, it is not legally required that you purchase insurance for your boat in New Jersey. It is a good idea to have boat insurance in case of an accident.
You cannot legally be sold auto insurance if you have no car to insure.
If not legally separated, you will probably have to wait until open enrollment through your employer to cancel her insurance. If you do get legally separated, you can cancel insurance as you have had "change in status." Usually insurance companies will process changes outside of open enrollment when you have a change in family status. An example of this would be getting married, having a baby, or getting divorced/legally separated.
depending on your establishment, you may not be able to trade legally without an appropriate amount of commercial insurance. Visit http://www.arista-insurance.com/sitesia.aspx/page/158 to find out more about different types of commercial insurance