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.