4 and 5 are fine. Let's go back over 1, 2, and 3. Here's a hint. You need to think in terms of the meanings of the sentences. Be especially careful about the meaning of "and" and "but".
If you take something out of the refrigerator, do you do that in order not to do anything with it?
Ghost stories are scary. They scare people. Is it easy to sleep if you are afraid