He vowed to marry a certain girl then he did not fulfil his vow

Is it permissible to give money instead of a vow, ‘aqeeqah or waleemah?

He owes many expiations for breaking oaths (kafaarat yameen) but he does not know what some of them are

He owes many expiations for breaking oaths (kafaarat yameen), and he does not know how to do it

If he fulfils his vow, is it permissible for him to eat from it?

The days do not have to be consecutive when fasting for kafaarat al-yameen

She said to her husband: “You are to me like my father”

Can he pay money for kafaarat al-yameen because nowadays it is more beneficial than food?

She promised her husband that she would never marry anyone after him

She vowed to fast for a month, should she make up the days when she was menstruating?