Yes it can.
Actually in non-euclidian geometry its possible that two parallel lines may form a angle, but it can never be possible in convention euclidian geometry (in which some of angles of a triangle is always 180 degrees, etc., such things are not sure in non-euclidian geometry).
NO
Nope. Parallel rays never meet- and so cannot form an angle.
Parallel rays are reflected by a mirror such that they remain parallel after reflection. This is due to the law of reflection, which states that the angle of incidence is equal to the angle of reflection.
False. They might be parallel, for example
Will Any two rays form an angle?
Two intersecting rays form an angle. Without two rays you do not have an angle.
For two parallel line segments or rays to form an angle, they would either need to coincide with each other, forming a 0° or 360° angle, or they would need to be extending in opposite directions from their shared point, forming a 180° angle.
No and yes. No, because parallel rays (if they don't share a common vertex) will never intersect and will never form any angles. Yes, because if they do have a common vertex, they would form a straight angle of 180°.
Two rays that share an endpoint form an angle.
Yes, but only if they are coplanar and not parallel.
the vertex is the point where two rays begin and form and angle
The common endpoint of 2 rays that form an angle is the vertex.