you can hold down on the comment then hit delete
click options and click delete post (;
no they will not.
To remove someone from your Facebook you unfriend them and if that doesn't work you can block them. That will take them off.
It is most likely because someone logged into your account one way or another and deleted your information manually. I dont think facebook will remove your info unless banned or something, which if you can log in, your not banned.
Grab and pull
This is not exactly Facebook's fault. It is the fault of the people who posted the pictures. Ask them to remove it, I'm sure they'd be fine with it.
It stays until you remove the post.
No
No body can remove your post from facebook..he can hide you post from his wall only.
TO delete a comment on your post, or a comment you posted on someone else's post, you simply click the rmove button on the top right corner
in the bottom left, theres options if you wanna remove/block/flag. its under the personal information of your profile.
message them and ask them to remove it