Another reason why women will not accept this is that if a couple relies on the woman taking the pill, she is free to surreptitiously stop taking it if she wants a baby and the man does not. Once she is pregnant, the man has no rights whatsoever and will have to pay child support. If many men start using this male contraceptive, women will lose this possibility to become pregnant against the man's consent.

Here in Norway, the defendant in a criminal trial is allowed to lie in court, whereas all other witnesses must tell the truth under penalty of perjury. But of course, if it is exposed that the defendant has lied, this will hurt his credibility and the court may then choose to disregard his testimony. How is that in the US? Is the defendant allowed to lie? Or can he just refuse to answer questions?

It is actually correct. Half a coffeecup of appleseeds will, indeeed, cause the death of an adult human, but that has nothing to do with cancer. The seeds are poisonous, and you will die of the acute poisoning, not an acute cancer. A warning about apple seeds causing cancer is as stupid as a warning on a knife that says "Warning. If you stab yourself in the chest with this knife, you may get an infection if the blade isn't properly disinfected".