Playing a recording of the Quraan Shareef in the house

Q: For a very long time we used to hear noises in the house at night. We would hear people walking up and down the stairs, down the corridor, chairs moving and the bathroom taps open at night. Even some that would visit could hear the sounds. We would get sick very often but every time we went to doctors and did various tests it would all be clear. Nobody could tell us what was wrong with us.

From the beginning of the year we started playing Quran Sharief in the house in the background 24/7. Ever since, we haven't had any issues Alhamdulillah. We stopped hearing the sounds and our health has been better. Alhamdulillah Is this disrespect to the Quran Sharief?

Accepting an invitation from a person who works in a bank

Q: My cousin use to work in a bank. His job is in CAD department that verify's that if the customer applying for the loan could pay back to the bank. And after verification, he shares his approval with the loan providers in the bank.

My question is, since I and my family has a very close relation with them and they sometime invite us for dinner, lunch at their home. Is it halaal for me to eat from them considering my cousin is the only earner in their home?

Assisting one's sister with zakaat

Q: My sister has separated from her husband. She and her three kids are living with my brother and his family (i.e. wife and two little daughters) in one bedroom appartment in London. Her husband has not yet given her divorce but also does not pay for anything for the kids either. She herself is not working at the moment. Can I pay my zakaat to her or it will only be considered as sadaqah?