those have been discussed in the forum several times. You are not a newcomer. I am surprised that you are asking these questions. By this time , you are supposed to know all these answeres.
Well, I don't. I guess I failed Islam 101.
non-Newcomer or not, I don't remember the answer to these questions. Or to me, they don't seem like the same question, even if they do to you. Surley, you can understand that. In the asking questions of Christian thread you've personally asked what appears to me to have been the same question within days of each other. I had to learn that what I saw as repition you saw as clarification. Please, grant me the same latitude.
Are we giving u different answers each time and you are becoming confused ? Pl. mentioned the diffferent answers so that we can correct ourselves ( hopefully

) .
Yes. Sometimes there are different answers given.
For instance, look at the whole host of different answers to the very first question I asked in this thread about music. Now that didn't confuse me, it just awakened me to the realization that though Islam talks about being internally consistent and unified, and having no denominationalism, that though you may not call differences denominations, that there are differences just the same.
The answer to my question on "how one is saved" has received a number of different responses as well. Now, they are not opposites in the way the views with regard to music were, but I do see different foci from one individual's response to another. Of course, that happens when you ask Christians questions as well. Supreme, Glo, Eric, and I don't always agree. Even less so when you consider some others who have come and gone. Sometimes it is theological, but more often it is tone. And I'm picking up both in the answers I'm receiving.
Also, over time, I learn to think and process information differently. I read more, I interact more, I reflect more, and all of this causes me to ruminate on that which I have heard before. But, I am very aware that in my internal reflections that I may not be properly stating what Muslims have actually said or hold. In another thread someone has challenged me by misstating my position and attributing to me things I have never said and don't even believe. I'm under no delusion that I might not do this as well. So, I take the time to ask again, and confirm that the answer I think is the one that would be given by Islam by asking again to see if it is indeed the answer I receive.
With regard to how one understands salvation in Islam and the various roles of the prophets in their societies, I find that I am still learning.
Anyway , short answer is all Prophets are not mentioned by name in Quran or hadith. There is a verse that says Allah does not punisn any nation without sending any Prophet . Names of 25 Prophets are mentioned in Quran . I posted the names earlier . If u want , I can browse again.
No. Most of the prophets that I hear mentioned are those that I know from the Bible. And I am thinking that since Mohammad is receiving this revelation directly from God and this message is to be the last one for the whole world, that it is very strange that the names of the prophets would be so heavily influenced by those listed in the Bible and names that could have been known to Muhammad and not include those from other places as well. But Skye provided the names of a few that are not of the Biblical tradition. If you want to do some research, I would be curious as to where these other (non-biblical) named prophets are from.