Ramadhaan & Fasting

Q: What are the forbidden days to fast in the Islamic calender/ year? Also which are the favourable days to fast in the months and year.

Q: I am keeping my shawwaal fasts. I had misread the ending time for sehri and thought it was 5:11. However in reality the time ended at 5:06 and fajr entry was 5:11. I stopped drinking water 1 minute before 5:11 because I had read sehri ends a minute before fajr entry. Is my fast valid. Do I have to repeat the fast?

Q: I am 25 years old. I missed out fasts during my teen years and I am unsure of how many fasts I've missed. Probably around 30-40. I do however want to give kaffarah for those fasts. Should I re-estimate how many fasts I have missed and pay a kaffarah for each fast, or should I pay one kaffarah for all the missed fasts? Also, how much should one pay for a fast? Or how many people should I feed to suffice for one fast? Jazakallah in advance.

Q: Can a person come out of the musjid to perform a sunnah wudhu while in sunnah I'tikaaf?

Q: Can a woman demarcate more than one room for her sunnah I'tikaaf in her home?

Q: There is only one week remaining of Shawwaal, and I want to keep the six fasts of Shawwaal. However, I have 13 qadha fasts to keep. Should I keep the qadha fasts first and miss the six fasts of Shawwaal or can I keep the six fasts first and thereafter make up the qadha fasts? 

Q: I was travelling to Madinah in Ramadan and I reached Madinah at sehri time but when I woke up I did not know azaan was finished so I drank water and then I was told so do I have to keep the fast again?

Q: Will masturbation break our fast?

Q: My father has diabetes. Is it fardh for him to fast in Ramadhaan? He was advised by doctors to avoid fasting.

Q: Sublingual tablets for heart patients which blend with the saliva and blood stream. Is it permitted during fasting when one's condition is difficult to manage? i.e. will it break the fast?