Conditions for the validity of Nikaah

Q: If some Muslim enters into a nikaah contract being intoxicated in the presence of two sober Muslim male witnesses, will the nikaah contract be valid or invalid?

Q: I just wanted to ask a question. I am having my nikaah done at the mosque in a week. I have researched upon the topic of allowing your husband to remarry. I wanted to have a condition in my nikaah that my husband should not remarry whilst he is married to me. If he was to do so and hide it from me he will be negligent upon his part. My query is where I live we don't have any blank space etc on the nikaah form to write such a condition. Is it enough for me to just mention it to my husband at the time of nikaah or before etc? He is already aware this is what I want as I have told him before. But online I have read on many sites that you should mention these things at the time of the nikaah otherwise it will not be valid? Please tell me how I should go about it.

Q: My question is about nikaah. Can a boy and girl make nikaah on their own, just oral, with one witness or without witnesses and how? We did that, we read kalima and than he asked I son of, he told his father's name and he asked do you accept me as husband. I said qubool hai 3 times, and he said the same. We had one witness. Is this nikaah valid?

Q: I had a question, I commited zina with a woman who is my wife. She got pregnant at the time however we did not repent at that time. The imam that married us was aware that she was pregnant but he did not make us do tobah. We got married and then we had repented for what we had done. We both were not aware at the time that you must repent or the marriage may be invalid. It has been four years since and I wish to know is our marriage valid or invalid.

Q: I'm in a relationship with a Muslim person who is sunni like me but his emaan is a bit wrong also against some things in Islam. I wanted to know if I can marry him? Even if I marry, will it count as a nikaah or not?

Q: Please advise on the below scenario as well as questions. Insha Allah I am getting married in December in Cape Town, and I am from natal. The wedding and walima will be taking place in Cape Town. The Imam will perform the nikah at the house, as the nearest masjid is far away from the house. Is this allowed in Islaam? or does the nikah have to take place in the Masjid. For us to have the Walima, what are the requirements that need to take place. May Allah Ta'ala reward you for your assistance.

Q: Is it permissible in Islam to perform nikaah without the presence of parents and family but to have only friends present to act as witnesses, etc?

Q: I did nikkah with a girl who is above 18 years old. The nikaah was recited by her cousin who is younger than her. Four witnesses were my friends who were unknown to her. We didn't register our nikkah. Is our nikaah valid?

Q: I am living abroad and I want to save myself from zina. Can I marry for a month?  My partner is also ready.