Which husband will a widow have in Jannah?

Q: I recently was asked to speak to a young man who wanted his mother to divorce her second husband. Whilst there were many valid reasons put forward as to why this divorce should go through, one statement was made which I do not fully comprehend. The son mentioned that when a woman re-marries, she will be in Jannah with the last man she was married to. Is this correct? In this case the woman was widowed as her husband was shot and killed in a robbery. The woman , no doubt , still has a lot of love and feeling for her late husband. They seem to be concerned about her ending up with her first husband in Jannah and hence justify the divorce from the second husband.Please advise.

Secondly, what is the Islamic viewpoint regarding making conditions on a person before nikah? For example, the woman will not fulfill conjugal rights or the woman will stay closer to her family instead of her in laws. Please advise.

Carmanic acid

Q: Is it allowed for a Muslim to eat a product that has Carmanic Acid, which is made from insect. If it is Halal, then majority of the food have some sort of insect in them (tiny amount), would that be considered non Halal to them?

Using mannequins

Q:

1. Is it permissible to use mannequins in order to display clothing in a store?

2. Is it permissible to use mannequins to display clothing in order to take pictures of the clothing for advertising purposes.

NB: mannequins are available in different variants, male, female, with face, headles, with or without the lower torso. Could Mufti Saheb please advise the ruling with regards to each option.

Repentance from major sins

Q:

1. Would Allah accept salah of a person who commits major sins?

2. Would Allah accept salah of a person who gives and recieves interest (ribaa)?

3. Would Allah accept good deeds like salah of a person whose in debt?

4. Is it true if you miss 3 jummah(Friday salah) you lose your religion?

5. Does Allah accept repentance from a person who doesn't pray salah?

Mistakenly scratching someone's car

Q: What is the procedure in the following case:

I was at a parking lot. Just as I opened my car door, a strong wind blew it onto the car next to me and scratched the car abit and cracked the indicator light. I was scared and wasn't sure what to do. I considered leaving a note along with some money on the windscreen but I was afraid and drove away. Now it's really playing on my conscience. Please advise.