Facebook – In Facebook, if I share some post from others timeline onto the timeline, who will be able to see it

Good question. Let me explain the answer one by one.

1. If you are the one uploading that photo, your privacy settings will apply to the post. If you've set the friends of friends settings, all the friends of your friends can see the photo, if you tag your friends in it. The exception is if you've explicitly excluded a person or list from the post. In that case they won't be able to see it, except if your friends reshare the photo.

2. If your friends is the one who uploaded the picture, his/her privacy settings will apply. The person you've blocked can see the photo, but can't see your tag in it.

3. Same as answer 1. He can't see unless the post is shared by one of your friends.

Visibility of what another person posts is controlled by that other person and you cannot do anything at all.

When you put someone to your restricted list, you are removing posts from them and about them from your view - not your restricted friend's view.

Basically, the problem is that some other people are seeing posts from some other people that they do not wish to see. So, it is those some other people who need to change their settings, you can of do anything from your account.