A treaty is null and void if it is in violation of a peremptory norm. These norms, unlike other principles of customary law, are recognized as permitting no violations and so cannot be altered through treaty obligations. These are limited to such universally accepted prohibitions as those against the aggressive use of force, genocide and other crimes against humanity, piracy, hostilities directed at civilian population, racial discrimination and apartheid, slavery and torture, meaning that no state can legally assume an obligation to commit or permit such acts.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What will a treaty be if it is in violation of a peremptory norm?
Ah, so.. null and void

Seizing the opportunity to increase his presence on Fleet Street, he made an agreement with the print unions, promising fewer redundancies if he acquired the newspaper. He assured IPC that he would publish a "straightforward, honest newspaper" which would continue to support Labour. IPC, under pressure from the unions, rejected Maxwell's offer, and Murdoch bought the paper for £800,000, to be paid in instalments. He would later remark: "I am constantly amazed at the ease with which I entered British newspapers."
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did the prospective owner of the paper promise?
Ah, so.. fewer redundancies

After their adoption, treaties as well as their amendments have to follow the official legal procedures of the United Nations, as applied by the Office of Legal Affairs, including signature, ratification and entry into force.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which office of the United Nations is in charge of applying its official legal procedures?
Ah, so..
the Office of Legal Affairs