Summarized Fatawaa
• Is it permissible for a Muslim to slaughter an Aqeeqah on behalf of someone else, and offer it to him as a gift?
In principle, the guardian is the one who should offer the Aqeeqah(the sheep slaughtered on the seventh day from the child`s birth) because he is obliged to provide for the newborn, and it is impermissible for anyone else to slaughter it on his behalf unless with his consent. However, it is permissible for a person to offer the sheep, or its price as a gift to the guardian of the newborn, and then the latter can slaughter it, or deputies someone else to do that on his behalf.
• What should a worshiper who has forgotten a pillar of prayer do?
If he/she remembered the forgotten pillar before offering it in the following Rakah(unit of prayer), then he/she should offer it, and continue the prayer, then offer Sujood As-Sahw at the end of it. But, if he/she remembered that forgotten pillar after having offered it in the following Rakah, then he/she should offer a new Rakah in its(the one in which he forgot a pillar) place, and offer Sujood As-Sahw(Prostration of forgetfulness).
• Is washing both openings(Istinjaa`) a must before every ablution?
Washing the front and back openings(Istinjaa`) is a must in case they have an impurity, but if they do not, there is no need for that, and Istinjaa` is not a condition for the validity of ablution.
• Is Fajr(dawn) Sunnah a confirmed one?
Yes, it is a confirmed Sunnah which the Prophet(PBUH) used to offer regularly.