Can Anyone Help Me Find The Names Of These 4 Movies?

When I was a kid, I saw a lot of horror and sci-fi b-movies. Unfortunately, since most of the movies I saw were not mainstream, I can’t find any of their names. Also, adding to this dilemma, since I saw them a long time ago, as very young kid, I can only remember bits & pieces of them. Hopefully, from the following descriptions on what I can remember, somebody can help me find them.
The first movie I can remember very well, and it was a horror anthology movie. The first story in the movie, was about a guy who tried to rape his date, but killed her instead. After he attended his victim’s funeral, he preformed necrophilia on her body, before his victim was buried. Later that night, he gives his older sister a bath. However, somewhere in along the plot, the killer murders his sister with an ice pick. At the end of the story, a demon comes out of his first victim’s grave, and then kills the murderer. The second story of the movie, has an injured civil war soldier arrive at a village of crazy kids. One of the kids, a girl with an eye-patch, nurses the soldier back to health. Somewhere in the plot, the soldier finds out that the eye-patch girl is his long lost daughter. When he finds out that the girl is his kid, he hugs her with a lot of affection. However, he also accidentally smothers and kills her. When the other kids in the village find out about it, they execute the soldier. The third story (which I assume is the last, since thats all I can remember from here), has an escape convict hide out with a kind and elderly black man. Somewhere in the plot, the convict betrays the old man, while the both of them go fishing on a boat, by pushing him the water, and letting the old man drown. However, the old man some how comes back to life, goes back home and ties up his would be murder. It’s then relieved that old man was a voodoo witchdoctor. For trying to kill him, the old man punishes the convict, by pouring oil all over his body and burning him alive. At the end of the story, the convict is found in hospital, wrapped in a bunch of bandages, crying (thats all I can remember).
The second movie in my list, is about space worm. It starts off with two aliens, disguised as an old couple. As the plot goes, the couple plans to eat the space worm, but some how it escaped. Without being able to the eat the worm, the couple start go into shock. Soon they can’t breath, and they also start to foam at the mouth. The scene later shifts to a guy next door. Soon the worm finds the guy, and then starts leeching off of him. However, the guy doesn’t mind, because the worm is making him high, while it sucks the man’s blood. All I can remember from here is, the guy and the worm go on a lot of adventures. And the last part I remember is, the guy going into a club, picking up a punk rocker chick. They go back into the club, and soon she notices how big the guy’s crotch is. Thinking that he’s hung like a horse, she unzips his pants. Unfortunately for her, it turns out to be the space worm. From there, the worm kills her, and thats all I can remember.
The third movie, I barley remember. It’s about an android woman that assassinates a lot of guys for her creator, and I can only remember two scenes. The first scene is in an office, and it has the android getting ready to get busy with a guy. However, just as the guy starts to screw her, his johnson gets cut off by the android’s crotch hole. The second scene that I remember, is in an airport. The android woman picks up a guy next to an active plane, and chops off his head with a spinning propeller.
The last movie, I remember the least. I only remember it’s plot and one scene. The plot is about a teenage guy dating girl (who’s really a hell demon in disguise). Throughout the movie, the demon girl kills a lot people around the high school. And at the end, she takes her boyfriend back to hell, for a prom. The couple wins the vote for prom king & queen. And as the guy is being crowned, he finds out that crown is really a grinder, thats going to smash his brains. However, at the last minute, the guy is saved by a female fellow classmate. Thats I can remember from there.
Anyway, if anybody could give a title to any of these 4 movies, it will be greatly appreciated.