I have some dubts [ doubts] about these fhrases [phrases] Are all of them correct?

Neither man admitted burgling the flat.
Both man [men] admitted burgling the flat.

Neither [... of the ...] suspects denied being in the área.
Both suspects denied being in the área.

I've enjoyed each [every] holiday I've ever been on. 
I've enjoyed every holiday I've ever been on.

Coffe or tea? I don't mind - I'll have either
Coffe or tea? I don't mind - I'll have neither [either] or I dislike both of them, I'll have neither.
** ( I know 'either' is used in negatives phrases and 'neither' in positive [wrong way round!] but, in this specific case, which one is the reference ? "I don't mind" which is negative or "I'll have" which is positive?)

What chaos!.
It is chaotic for me!.