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In Euclidean geometry they cannot.
In other geometries they can meet at various points, depending on the configuration of the space.
In projective geometry, for example, they meet at the "point at infinity".
In physics, though, parallel rays (of light, for example), can be made to meet at the focus of a lens or mirror.
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The place where two faces meet?
As long as they are not parallel, they will meet at an "edge", which is just a straight line.
Do parallel lines meet at a 30 dregrese angle?
Lines that meet are not parallel, and parallel lines never meet.
Why aren't skew lines parallel?
Because of the way parallel lines are defined. Parallel lines never meet, but to qualify as parallel lines, additional conditions may apply. From Wikipedia: "Two lines in a plane that do not intersect or meet are called parallel lines." Emphasis added.
What are the characteristics of two parallel lines?
Being 'Parallel' , they only meet at INFINITY.
Do parallel lines meet at a 30 degree angle?
No, in Euclidean geometry they do not meet.
