Yes.
Parallel lines are ALWAYS coplanar.
Two lines that are not coplaner exist on two different planes. These lines do not and will not intersect by simple definition. It is however, when speaking of three or more lines, when the possibility that two or more of them may intersect.
Coplaner surfaces are two or more surfaces that are in the same plane.
Transversal
Two pairs
How very interesting. And the question is ... ? Every line will intersect an infinite number of coplanar lines - not just "two or more".
they are two or more forces on the same plane
Two parallel lines are coplanar if they lie in the same plane and do not intersect, regardless of how far they are extended. This property is fundamental in geometry, as parallel lines maintain a constant distance apart. Being coplanar means that both lines can be drawn on a flat surface without any elevation changes.
No, not always. Skew lines are never coplanar, but parallel lines are.
If two different lines intersect, they will always intersect at one point.
They are a pair of vectors which are not parallel but whose lines of action cannot meet.
always. if two lines intersect, then exactly one plane contains the lines.