The Prophet's history

Dear Sheikh! as-salam `alaykum! Could you enlighten me on the details of the last moments in the life of our beloved Prophet, peace and blessings be upon him?

As-Salamu `Alaykum. Prophet Muhammad (peace and blessings be upon him) had eleven wives in all and nine at the one time. However, a Muslim is allowed a maximum of four wives. Would you please shed light on this issue as early as possible? Jazakum Allah khayran.

Dear scholars, thanks for your efforts in educating people about Islam. But would you help us address the misconceptions filling the mind of some people, especially the Westerners about the Prophet’s marriage to `Aisha, may Allah be pleased with her, as they claim it to be a sign of child abuse?

During the `Eid, I had an argument with a friend of mine, a Christian by the way, who said that Isaac (Is-haq), not Ishmael (Isma`il), was the one Abraham (Ibrahim) wanted to offer as sacrifice. Could you explain this?

Scholars of Islam, As-Salamu `alaykum. I want to know who are the 12 caliphs after Prophet Muhammad (peace and blessings be upon him)? I heard a hadith of the Prophet in which he told about the 12 caliphs after him.