1) If someone is not sure how many days of fidyah she has pay in this case what she should do?

2) Can a daughter pay fidyah of her living mother without her knowledge?

3) Can I pay fidyah to the family or relative if they are poor?

1) You should pay the minimum number you are certain about

2) The daughter can pay it

3) Yes, you can give to relatives who maintenance you are not responsible for (parents, children, etc)