Oaths & Vows

Q: A person took an oath. 

After a while he said the oath will end in 1 week. After the 1 week has passed will the oath be valid?

Q: I remember that I did not make any vow or verbally utter any vow to read 8 rakaat shukriya nafil namaz. Only a thought came and I read. Still, that thought is confusing me that it was a vow and I am getting scared of those thoughts. I am getting thoughts that I made vow verbally, but I don't remember making a vow verbally. I am confused whether it was verbally or not.

Q: I promised 10 nafal everyday if Allah fulfills my wish. If I pray those nafals after 12 a.m would it be ok or would it count in the nafal of the next day? Like I pray those nafal after isha and it often gets above 12 while praying because I have waswaas regarding salah. Do I have to repeat these nafal? I always prayed after isha so it means that technically if I prayed on for example on 12 December it would actually be counted as the nawafil of the 13 and the nawafil of the 13th will be considered as the nawafil of the 14th so it would still complete the 10 days.

Q: As a child I would not take promises and oaths seriously and this continued even after buloogh... I am 18 years old and only now have I realized the seriousness of it. What do I do?

Q: A person in America wants to give kaffarah-e-yameen in South Africa. Can he give it according to the rate of sadaqatul fitr in South Africa or will it have to be according to the rate in America? Please advise

Q: Can I delay the expiation for broken promises until I get enough money to feed poor people? Its already maybe four or five years since I know I should pay kaffarah but now I think insha-Allah within two months I can pay kaffarah. So should I wait or should I start fasting? Right now I cannot fast because of my health condition. 

Q: A person has a kaffarah of oath to fulfill. Thus he has to give sadaqatul fitr amount to 10 people. He gave to 7 different people but the remainder 3 he gave to 1 person on separate days. Is the kaffarah discharged?

Q: A person took an oath that he will give sadaqah today. Will the English day or Islamic day that ends at maghrib be considered if he was totally emptyminded about which one, at the time of saying it.

Q: As for the kaffarah for the oaths, is it permissible to feed 20 people one meal instead of 10 people 2 meals?

For a baligh child that is not earning and living with parents, can he fast as a kaffarah or will his parents have to give it on his behalf?

Q: I made an oath to Allah that I would fast for 5 consecutive days if a particular event took place. I fasted the 5 days but not consecutively. Is my oath fulfilled?