Yes. The turbocharger, as opposed to a 'naturally aspirated' engine will not put positive pressure induction in to intake manifold if the seal leaks, and sure, you can drive it but with reduced performance and economy
It depends on the seriousness of the leak. Basically, if you car is not in top condition/repair you should not drive it.
no if u take a turbo out of a car it is no longer a turbo charged car
in nsw you cannot drive a turbo car on your L's Or P's but you can drive a V8 on your L's
Could either be a bad brake wheel cylinder (caliper) or a bad CV joint axle seal
Gasket
No
a turbo scooter
"Bad turbo" is hardly a very descriptive term. It really depends on what is bad and HOW BAD.
No, you run the risk of destroying the motor.
Porsche 3.6 Turbo
When a car begins belching smoke, it is probably burning excess oil or gas. It is likely that a seal is leaking in the engine.
You would have to state what country you are asking about.