Befriending kuffaar

Q: I have a best friend whom I hurt very badly because of a male friend. She feels hurt and we don't have the same relationship which we used to have before. She is also a non Muslim. What should I do? Even if I try to sort it out I don't think she will forgive me. Should I leave it or sort it out? What is the solution according to Islam? Please help me out.

Smell remaining after washing one's hands

Q: I was having a shower and was washing my backside from faeces. I used soap to remove the smell. I then smelt to check the tips of my fingers to check if the smell had been washed off and it had. After I had oiled and dried my body I after an hour or so passed my hand over my nose and smelt something like faeces on my palm. I only checked my fingertips when I had cleaned myself, so I am guessing that it had not been washed properly. I am now worried I have made my whole body and clothes impure.

Disposing of interest money

Q: A person accrues R50 of haraam interest in his bank account. From his wallet, he gives R50 in cash to a poor person with the intention of disposing of this accumulated interest in his bank account. Has he disposed of the R50 interest, noting that the actual ‘interest R50’ is still in his bank account?

Iddat of a woman whose husband passed away after childbirth

Q: What will be the "iddat" of a woman if her husband passes away and she has a 6 day old baby? It is in my knowledge that if the woman is pregnant then till delivery she is in iddat and in normal cases it would be 4 months and 10 days. But my question is this that just 6 days before the death of the husband she delivered. So is there no iddah and she will be "paak or tahira" in 40 days. Or she will complete 4 months?