What is the ruling on using bank cards such as Visa and MasterCard?

All perfect praise be to Allah, The Lord of The Worlds, and may His Peace and Blessings be upon our Prophet Muhammad and upo all of his family and comapnions.

It is permissible to use such cards in accordance with the following conditions : 1- The issuing body does not stipulate collecting interest upon late payments. 2- The merchant does not increase the price of the goods due to an increase in the commission collected from him by the card issuer.3- The purchased item(s) should not be gold , silver or currency in case the card is not covered. And Allah Knows Best.

Are all the children of a suckling woman considered brothers to the strange child whom their mother had breastfed, or just to the one who had suckled with him?

All the children of the woman who had suckled a strange child are considered his/her brothers and sisters.

What is the ruling on reciting verses of the Holy Quran on water, then drinking it?

It is permissible to recite Quran on water, then drink it as a kind of treatment since the Quran heals. Allah, The Almighty, says:” We send down (stage by stage) in the Qur’an that which is a healing and a mercy to those who believe: to the unjust it causes nothing but loss after loss.”{Al-Isra`/82}.

What is the ruling on a vowed animal sacrifice?

A vowed animal sacrifice is to be distributed amongst the poor and needy, and neither the vow-maker, nor those supported by him are to eat from it.