Using interest money for medical treatment and constructing toilets

Q:

1. Is it permissible to take money from an NGO or Charitable trust for medical treatment (Person who needs the money isn't capable enough to manage the expenditure)

2. Can we use interest money (Savings Bank account) for medical treatment of poor people.

3. Is it permissible to use money from interest received from a non Islamic bank for the purpose of construction of his/her own toilet.

Making enquiries regarding the aqaaid of the person one wishes to marry

Q: I am engaged but I am unclear about the boys deeni committments. I think he doesn't know much about deen as he says that he is a simple Muslim and thats it. Can you please guide me as to what questions should my family ask him in order for the the nikah to be valid? Is it necessary to question his aqaaid if he offers namaaz?

Seeing little wetness after a wet dream

Q:

1. When I start sleeping then in the beginning I don't sleep completely and some sexual things flash in my mind and some mazi comes out so this would be counted as wet dream? I am sure that I didn't have any vaginal throbbing nor did my heart beat get fast, so do I have to make ghusl?

2. When I woke up then I remember having a wet dream but there was no wetness nor mani or mazi but there was very little spot on my clothes which was looking like regular white discharge, so should I make ghusl?

Delaying the rukhsati

Q: My question is I’m getting my nikaah done in dec and might get rukhsti in 2019. My question is how long it is allowed to keep a nikah before rukhsti any specific time period. Because I heard we cannot keep nikaah more than a year rukhsti should be done before a year.