I have a simple problem basically I am unable to understand the meaning of some questions involving or/not, and using comma with and. I have the following questions:-
1.Whats the meaning of, say , X does not play football or cricket.
What we can infer from this. Can we say X does not play both of them? or one of them?
2.How the previous line is different from X does not play either football or cricket.
3.If x does not play both of them, why in books such kind of statements are there instead of neither/nor.
4.whats the meaning of
M and N, who reads newspaper, are not sitting together.
Here, Do M and N, both reads newspaper?
Please clarify these things to me. I am not a native Englishman so I found it very difficult to understand and as in logical reasoning questions these statements are common to see I face lot of problems.
Please also tell me about such more things that can be confusing, may be, provide a link.