There is actually no difference between the Phrase; "The man reads a menu." and "The man reads one menu." We do read multiple things unless the gerund is used.

How do you read meny? Me-nay?

Why correct is "the man reads"? How to tell "the man is reading"?

One menu??

Wait we're at burger King

I know this is off topic but I dont give a crap

Is Tänk and tänker the same thing or no? if not tell me the difference