Nikaah & Marriage Issues

Q: I have an adopted girl (minor). I want to perform my Nikah with her. How can that be done as usually its the guardian that would do this but I am the guardian.

Q:

1. I have a bedroom in which I sleep with my 3 year old daughter. Theres lots of space in my room but my husband does not sleep in the same room as me. Do u think he should sleep in the same room or is it ok for him to sleep seperate from me?

2. Is it wrong for both of us to sleep in one bed as we have children aged 18 to 3 years?

3. Is it wrong for my children to see us sleeping in one bed?

Q: I was forced to marry a person whom I did not like. I told my mother many times that I dont want to marry this person but my family was not willing to call off the marriage. One night before the nikah I consumed sleeping pills with intention of commuting suicide (Astagfirulkah). The next day I was under the influence of medicine and I don’t remember anything. During my subconscious state my nikah was done with the boy. I was not in my complete senses. I informed my husband about the suicidal step that I have taken and that I don’t want to live with him. Is this Nikah valid as my consent was not given in complete consciousness.

Q: We are Muslims and a childless couple. We adopted a baby girl and we don't know about her parentage. We want to give her our name and identity and raise her as our own, without telling her that she was adopted. We don't know who are her parents. Is this allowed?

Q: Can a married woman stay the night at her (married) sister's house, without her husband's permission?

Q: In Islam, a husband and wife are rewarded for satisfying eachother in bed, but what if a boy marries a girl by doing sihr (jaadu) on her and makes her agree to marry him? In that case will that person be rewarded by Allah for satisfying her or will it be counted as a life time rape? 

Q: Is it haraam to chat or look for a wife online?

Q: Before I married, no one told me about how mahr works. They told me that I must take whatever he gives or I cannot marry him. Is it right or what?

Q: Is it permissible to marry one's cousin (dad's brother's daughter) who is older then one by four years?

Q: Can we use toys with some kind of sound to stop a baby from crying?