1. My father reads the newspaper every day.

(What does it mean?
2. My father reads the same newspaper everyday.

3. My father reads a newspaper every day. Does #1 mean #2 or #3? Is 'the newspaper' the generic term? )

"The newspaper" is a generic term. It assumes that it's the same newspaper -- i.e., the local city newspaper.

We don't usually use # 3.

Thank you?

Do you mean that he doesn't read only one (the same) newspaper again and again?

Do you mean that he reads everyday newspaper (different newspaper every day)?

Ahh!

It's not the "same" newspaper over and over. He reads each day's edition of the local city newspaper.

OK. Thank you.

If the father reads the same newspaper again an again, what expressions do we have to use? If he has such a strange habit, what do we say?

We might say that a person who reads the same newspaper again and again is demented or has Alzheimer's disease.

You'd clarify it more. You would say something like:

My father reads the same newspaper every day. By that, I mean the EXACT same paper.

You would say that with a stronger emphasis on "exact."

1. When someone says, "My father reads the newspaper every day," it means that their father habitually reads a newspaper on a daily basis. It suggests that reading the newspaper is part of their father's regular routine.

2. When someone says, "My father reads the same newspaper every day," it indicates that their father reads a specific newspaper consistently. It implies that their father prefers a particular newspaper and sticks to it without changing or exploring other options.

3. When someone says, "My father reads a newspaper every day," it means that their father reads any newspaper on a daily basis. It doesn't specify whether it's the same newspaper or different ones each time.

To determine the meaning of sentence #1, we need further context. If "the newspaper" in sentence #1 refers to a specific newspaper that their father consistently reads, then it would have the same meaning as sentence #2. However, if "the newspaper" is used more generically, referring to any newspaper, then it would have the same meaning as sentence #3. The specific meaning can be clarified by considering the context and speaker's intention.