What is the ruling on speaking while relieving oneself?
It is disliked for one relieving himself to speak while doing so, except out of necessity. And Allah the Almighty knows best.
Is it permissible to give to the poor from among the People of the Book from the Udhiyah?
Praise be to Allah, and prayers and peace be upon our Master the Messenger of Allah.
It is permissible to give to the poor among the People of the Book from a voluntary sacrifice (uḍḥiyyat taṭawwuʿ), just as it is permissible to give charity (ṣadaqah) to them. This opinion is a view (wajh) within the Shāfiʿī school, which was favored by al-Muḥibb al-Ṭabarī and Imam al-Nawawī. [See: Ḥāshiyat Ibn Qāsim al-ʿAbbādī ʿalā Tuḥfat al-Muḥtāj (Vol.9/P.365)]. And Allah Almighty knows best.
Should missed Sunnah prayer be made up?
Making up missed voluntary acts of worship is from Sunnah.
What is the ruling on using an inhaler while fasting?
Using an inhaler through the nose or mouth breaks the fast because the medication in these inhalers is intended to reach the lungs, which are considered part of the body cavity (jauf).
● If a person needs to use it occasionally, they may use it while fasting, continue refraining from food and drink for the rest of the day, and make up for the missed fast later.
● If a person needs to use it daily, they may use it while fasting, continue refraining from food and drink, and pay fidyah (feeding one needy person per missed day).