None. Parallel lines do not intersect in Euclidean geometry.
Parallel lines don't intersect, no matter how many of them there are.
In space with 3 or more dimensions, there are infinitely many pairs of lines that are not parallel and do not intersect.
It depends on how many lines intersect. An infinite amount.
They are simply non-concurrent lines. They need not be parallel. To illustrate that consider yourself in a cuboid room standing with your back to one wall. Line 1 is where the floor and wall meet behind you. Line 2 is where the left wall meets the wall facing you (the far wall). The two lines do not intersect but they are not parallel. There are many other such lines in the room.
parallel lines never intersect.
None. Parallel lines do not intersect in Euclidean geometry.
Parallel lines don't intersect, no matter how many of them there are.
In space with 3 or more dimensions, there are infinitely many pairs of lines that are not parallel and do not intersect.
Zero; they never intersect and therefore they do not have a solution.
parallel lines are any lines that will never touch. on a 3D plane, there will be many lines that won't intersect another. but parallel lines have a specific definition that there is no way to subcatigorize it
Coplanar lines can intersect an infinite amount of times.
A quadrilateral has 4 sides, 2 in which never intersect. Therefore, the lines that don't intersect are called parallel. There are 4 parallel sides but has 2 pairs of parallel sides.
Two lines intersect at one point. If in two dimensions, and they do not intersect they are parallel. The other option in two dimensions is they are the co-linear, that is they are the same line, in which case they intersect at all points.
It depends on how many lines intersect. An infinite amount.
It depends on how many lines intersect. An infinite amount.
Two.