Iftaar with non-Muslims

Question from China about the time of iftaar

Her period became longer because of the IUD

Is the reward of fasting commensurate with how difficult it is?

She is sick and does not understand anything and is not aware of her surroundings. Does she have to feed the poor (in lieu of fasting)?

She saw a spot of blood – should she fast?

Is it permissible for him to prepare food for a non-Muslim son during the day in Ramadaan

She became pure after Zuhr; does she have to fast for the rest of the day?

Ruling on the fasting of a person who wrongs others

If the muezzins differ, who should be followed with regard to breaking the fast?