Ok... Thanks for the number 5 clarification. I now understand that parallel means not touching and same direction.
So my guess for number 4 is that it is True. A line will intersect with a plan always - unless it is parallel.
Number two was a misunderstanding on my part. I was thinking of a vector equation of a line. And I thought that if you use opposite directional vectors, then the lines would not be parallel. But they will be parallel because you can factor out the negative. So number 2 is True.
I didn't directly state this, but for number 1 and number 3, my explanation is wrong. the correct answer (according to the book) is that number 1 and 3 are false. So I'm trying to understand why...
I would think that number 1 would be true, but it is false because the normal vectors could be in different directions... and I believe this is part of the definition of parallel planes (I'll get back to you... have to double check in the book)
So if that definition is of parallel planes is true, then number 3 is false by the same logic.