Also, there are several laws scattered around relating to nuclear devices.
I don't think that's too uncommon, but it's certainly out of context.
North Carolina General Statutes, Chapter 14, Article 36B. Nuclear, Biological, or Chemical Weapons of Mass Destruction. The manufacture, possession, transport, and sale of nuclear, biological, and chemical weapons is a class B1 felony in North Carolina. Injuring someone with one is a class A felony, and punishable by life in prison without parole.
The no age of consent thing in Japan is outright false, unless they just so happen to not use western terminology for it, in which case saying that there's no age of consent is as silly as listing "no animals allowed in barbershops" as "no flamingos allowed in barbershops (because lol flamingos are a type of animal lol)". Nationally it's set at 13, though I understand individual prefectures usually set it higher. Strangely, in the US, the age of consent is set at 17 by federal law, but many states have it lower (I believe 16 and 17 are the most common, with... two? I think it is, having 14 (I don't recall which ones though)), and have additional provisions altering it in certain cases, such as closeness of age or marriage.
Most of these laws are either made up (like the age old "more than x number of women living together constitutes an illegal brothel"), antiquated (anything to do with horses being used as a means of transportation), not actually unusual in context (like the things regarding watering one's lawn; I recall similar provisions are put in place (though not as laws) around here during particularly bad droughts (which the local media loves, as I'm sure you can imagine, because they get to harp on endlessly about how we're all going to die and society will turn into Road Warrior
because it will never rain again )), or misrepresented as prohibiting a very specific, unusual thing when such merely falls into a broad category that's prohibited (such as prohibitions on odd weapons (North Carolina, for instance, prohibits the concealed carry of "shurikins"; it's buried in the middle of a long list naming every bladed weapon they could think of when writing it, and ending with "and other such weapons.") or animals).
Of course there are a few that are both real and absurd, like Canada (and Australia) considering fictional minors as real (and in the case of Australia, women with small breasts being considered children), obscenity laws, bans on the sale of liquor on sundays (or even better,
at certain times on sundays), and this rather funny gem I ran across while reading through chapter 14 of the North Carolina general statutes:
If any person shall, on any public road or highway and in the hearing of two or more persons, in a loud and boisterous manner, use indecent or profane language, he shall be guilty of a Class 3 misdemeanor. The following counties shall be exempt from the provisions of this section: Pitt and Swain.