Yes
No, it is not illegal to start a car but drive a car is illegal.
Yes, Sparks is an alcoholic beverage and is illegal for anyone under 21.
No.
Definitely illegal and probably a little immoral.
No, but in most states it is technically illegal to have sex.
no, it is not illegal to date
Sexual contact may very well be illegal. Consult the laws for the place where you live.
Anyone and an immediate relativeAnyone and an animalAnyone and someone under the age of majority
No, it's not illegal to date. It's illegal to have sex with someone under 18. But if you don't do that then your not breaking the law
It is not illegal to be nude in your own home. It would be illegal to go out in public nude.
It's generally regarded as impolite, but the act is not itself illegal. It may become illegal under certain conditions.
In the United States it's also illegal to sell Cuban cigars to someone over 18 years old.