Yes, you do.
You didn't say which state but most states will require that you retake the written test and some will make you retake the road test.
No. Your Canadian drivers license is good anywhere in the USA, by international agreement - that's what got the Florida government in hot water recently.
It may depend on how long it has been expired. Call your local DMV agency.
You can go to your local town hall or city hall to renew your driver's license photo and card. If you need to retake your driver's test physically, you will need to go elsewhere for that.
You need to be 18 to get you drivers license but when you are 16 you can drive with a guardian that has a drivers license.
No you do not need a special drivers license to rent a wheelchair van. All you need is to have your class D drivers license.
You need to apply for an International driving license if you plan to remain in Europe, your Canadian license is OK for a short holiday, check with the authorities though, rules may have changed in the last 2 years.
Yes.
No, they do not need a drivers license to drive a NASCAR race car.
No. To ride a motorcycle you need an M-Class license. To drive a car you need a drivers license.
You do not need a drivers license to register a car in the state of Missouri. A drivers license is only required if you intend to drive the car.
you don't need a special license to drive an RV just a regular drivers license