Breaking a promise

Q: A Moulana was doing a bayan on the internet and the Moulana said how much of you miss salaat some times, so I raised my hand. He was on the internet talking and I was listening on my phone. Then he said how much of you will make sure you will not miss namaz again so I put up my hands and then the Moulana said that we need to put in our minds that when we put up our hands, the angels were witness that we put up our hands. From today, now insha Allah I try to read my 5 times namaz. If I miss a salah, not on purpose but some times for fajr if the time is near to end and I put my alarm and I miss it or I said that I'll wake up and when I wake up time was up. Do I have to give kaffarah because I raised my hands when the Moulana said who will not miss salah from today? Is that a promise?

Hunting

Q:

1. If the hunting dog catches and kills the prey, is it halaal to consume? Will zabah have to be made if so?

2. In hunting if the animal is killed with just the force of the arrow, is that animal halaal? If so, will zabah have to be made?

3. Is the use of shot guns/ hunting rifles permissible?

Giving zakaat to a needy person

Q: We know one Muslim family originally from Jordan but living in USA who is going through tough financial situation because father of three small kids had a brain surgery last year due to which he almost lost his memory and lost his job. Doctor has advised him not to go back to his native country (Jordan) for another year due to post brain surgery. It's been almost one year since he is jobless and having such a hard time to pay monthly rent and bear living expanses. The father of three small kids had told us that he own a property (house) in his native country but he has no means of income in USA now a days to bear his expenses. Can we help him with Zakat money as its really hard for him to pay monthly rent and bear living expanses in USA?