Explanation of how a person who committed suicide will be punished

Q: "Whoever kills himself with a knife will abide in the fire of hell, perpetually stabbing his belly with it, undying therein forever. And whoever hurls himself from a mountain and kills himself shall abide in the fire of hell, perpetually falling to his death, undying therein forever."

I have copied the above from a screenshot from the reliance of the traveler (Shafi’i Fiqh). After resurrection, will any human or jinn die or will they live forever without ever dying? How is this narration understood?

Voice cloning

Q: My wife found a audio voice clip on a memory card but it's not my memory card. I have never used any memory card. She sent me that voice clip and I heard that voice clip. It sounds the same like my voice talking to a girl. I know it's not mine and she is telling me that this is you.

Keeping a girl's name منحة

Q: I wanted to clear a confusion regarding a child's name.

Regarding a girl's name we shortlisted "MINHA" which we thought means to be "grant of Allah". But when I searched for this word translation, it means "of which". Some relative told me (منحة) word means grant.

So I am not sure about this word pronunciation. Would this be pronounced as min-ha-tun or min-ha? 

Taking a ghusal after nifaas

Q: A ladies nifaas ended at 18:54 on her 40th day. She is still spotting but she had a bath as her time was over. She had a bath before this time 18:54 was done bathing at 18:50. Does she need to repeat her ghusl as it was yesterday that she had her bath but realized today it was before the time?