My father passed away before my grandfather. Am I entitled to any share of my grandfather`s inheritance?
All perfect praise be to Allah the Lord of the Worlds. May His peace and blessings be upon our Prophet Mohammad and upon all his family and companions.
According to Islamic courts, you are entitled to what is called obligatory bequest (The distribution of estate to grandchildren who has either lost a parent before the death of the grandparents). Therefore, if your grandfather left such bequest for you, then take that share or else it is more prudent to take nothing. And Allah The Almighty Knows Best.
Does ill-gotten money hinder the answering of the Du`a(supplication) and the means of subsistence?
Sins hinder the answering of the Du`a, and deprive the sinner from means of subsistence; whereas, acts of obedience facilitate making a living. Allah, The Almighty, says in the Holy Quran: “And for those who fear God, He (ever) prepares a way out. And He provides for him from (sources) he never could imagine.”{At-Talaq/2-3}.
A woman used contraceptive pills, and her menses exceeded(15) days, is it permissible for her to fast?
The maximum of menstrual blood is(15) days, but if it exceeded that due to a medication, or the like, then it is Istihadah(bleeding outside the monthly period), and in this case she should perform Ghusl(ritual bath), pray, and fast. Moreover, she is obliged to make up for the missed fasting days which exceeded her regular menses.
What is the ruling on a person who isn`t able to fast due to old age, or an incurable disease ?
Paying the ransom is due on such a person, and that is giving a Mod(600 grams) of wheat, or rice, or the price of that amount to a needy Muslim for each missed fasting day.