Yes
The question "May I?" is asking for permission. The question "Can I?" is asking if I have the ability to.
NO
You do not need the permission of the photographer to use a stock image, but you do need permission of who ever licensed the rights. There are many free stock images and creative commons images on the internet that you do not need permission to use.
If they took your car without you permission, it is a vehicle theft. You would not be civily liable for an accident. Where the waters get muddied however, is if that person has driven the car with your permission in the past. He could use that as a defense in a criminal matter, because he could say that the permission to use the car "stands". It is doubtful you would incur any liabilty.
If your use is exempted in the law, you would not need permission.
Example sentence - She did not ask permission to use the car and is now grounded for two weeks.
Yes if you are not using the film for your own personal use you need permission from the band or it violates copyright laws
Yes, you can report your car stolen if your girlfriend took it without your permission, as it would be considered unauthorized use of your vehicle.
Unless the substance or subject is in the public domain you need permission to use it no matter what form of media it is in.
I know that if you use someone else's lyrics, you need their permission unless you're analyzing them. Yes, to use the poem as lyrics, or in any way, requires permission of the copyright holder.
You would need permission from the copyright holder to use photos from the internet. It's often challenging to identify and contact the rightsholder.
nah