Is it permissible to swear by (Allah "The Living")?
Yes, it is permissible because "The Living" is one of Allah`s Attributes.
What is the ruling on a person who broke the fast a day in Ramadan due to hardship?
He/she is obliged to make up that day.
Is it permissible for me to name my first son “Kassim” ?
The Prophet (PBUH) prohibited combining his name and his nickname, but using one of them is desirable.
It is stated in the Noble Quran that pork is forbidden for Muslims. Why is that so?
All perfect praise be to Allah, the Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad, sallallahu ‘alayhi wa sallam, is His slave and Messenger.
To Allah belongs the dominion of the heavens and the earth and He makes certain things allowed for us, while others are declared prohibited. Consequently, He the Almighty wouldn`t make something prohibited unless it is harmful; whether we are made acquainted with the reason or not. Moreover, medical doctors have stated that there are many harms for pork. And Allah The Almighty Knows Best.