The laws that are in effect in the state that you are actually driving in. Virtually all states have very similar (or the same) common-sense regulations.
i all depends on what state you live in
(in the US) You cannot "exchange" a foreign drivers license for a US state-issued drivers license. You must take all the tests, (written and driving) to prove that you are capable of operating a vehicle according to that state's laws.
Yes, you will be ticketed. The laws of ALL states require that you apply for, and be issued, a drivers license from the state in which you reside.
uhhh. WHAT
State laws
As a general rule, whenever you are curious about what state laws apply, the answer will always be "the state that you are in".
You must check the State Laws with DMV
Yes, the current state you are in is the state that you must follow the laws by. You will have points on your license for an accident in Maryland even if you are in Virginia.
Maybe, depending on the laws in the state. However, most states require you to have a license that matches your permanent residence. It is considered a crime to have more than one drivers license at a time.
check your state laws.... in north dakota you have to hold a farm operators license/permit
State laws may vary, but in Kentucky if you lost or allowed a drivers license from another state to expire, you have to take the written test and the eye exam to get a license in Kentucky. You also have to provide proof of identity, such as your social security card, and have a document from the state where your license was issued. Also, if your Kentucky drivers license expires even for one day, you have to retake the written test again.
State laws may vary. You don't need to drive to buy. If you have money, insurance you can buy. May not be able to get state registration without a license.