Make sure what you write is true, and there is little they can do.
If they don't like it they may try to sue you for defamation or slander.
Its better if you have documentation for what you write, or the facts can be confirmed by other people, however unless they actually have proof to disprove what you have written there is little they can do.
Make sure your facts are accurate, and you may want to try to speak with the people you mention to try to clear up any misunderstanding in advance.
In the end its your book, so tell it as you know it.
In theory you could, yes.
If someone copies a copyrighted website, then that is piracy and the person could be sued
they can be sued and ordered to pay a fine
In the US, at least, you can be sued for just about anything. I'm uncertain as to exactly how you could not know someone was on your insurance policy, though.
In order not to be sued for infringement, you may freely use public domain materials, but everything else must be entirely your own original work. In the case of an autobiography, that shouldn't be difficult.
That depends on what your band has done. If you've done a cover of a song, you can't be sued aslong as you credit it to the original artists. If you've called your band the same name as someone else's band then you could be sued if they find out. If you've hit someone over the head with a can of dry ice, then you can also be sued, or even prosecuted.
Yes, and you could certainly be sued for it.
That person could be sued and depending on the importance of the lie, he may be taken to prison.
Yes.
Yes, you can be sued for defamation if you call someone a name, especially if the name is false and damages their reputation. Defamation involves making false statements that harm someone's reputation, and calling someone a derogatory name could be considered defamatory if it meets the legal criteria for defamation.
yes
Anyone can always sue you, so in theory yes you could get sued for stopping a suicide attempt. Though it is not likely that it will be a successful case, it is a controversial subject, someone could always try to sue you.