Unless hired by the government, no it will be illegal.
Hundreds.
Legally, you can only kill cougars if they are trying to attack you.
Yes, legally, not sure about that..
Not legally...
you can't
YES!
No, it is not legally permissible to kill somebody. Taking someone's life is a serious crime and is punishable by law.
Not legally! It will be prosecuted as a murder.
Hunters kill animals legally, and poachers kill them illegally. Whether done by animals for food, by humans legally or illegally, all can be referred to as predators.
Yes, it is legally permissible to kill a bear in self-defense if your life is in immediate danger and there are no other options to protect yourself.
Absolutely not. You can if it has rabies or you pay a vet to.
Not legally. They are all fully protected by laws.