No. The planes must either coincide (they are the same, and intersect everywhere), be parallel (never intersect), or intersect in exactly one line.
no
Parallel lines don't intersect, no matter how many of them there are.
Tangent
always
No, two planes do not intersect in exactly one plane unless the planes are exactly overlapping, making one plane. In Euclidean Geometry two planes intersect in exactly one line.
No. Either they do not intersect at all, or they intersect in a straight line or are the same.
To intersect.
No. The planes must either coincide (they are the same, and intersect everywhere), be parallel (never intersect), or intersect in exactly one line.
Two distinct planes will intersect in one straight line.
no
always
Parallel lines don't intersect, no matter how many of them there are.
No, 2 planes may only intersect at a line, a plane, or not at all. THREE planes may intersect at a point though...
Tangent
always
No, that isn't possible.