8 Varied Islamic Questions

1-Ruling on women wearing tight clothes in front of women and mahrams
2-Ruling on items confiscated from students who break the rules
3-Renting out part of the mosque in order to make money from it
4-She fasted to make up days from Ramadaan without her husband's permission
5-Does Allah come down to the first heaven on the night of the fifteenth of Sha'baan?
6-The reason why fasting is prescribed
7-Buying real estate through the bank
8-How should we welcome the month of Ramadan?