Answer:
Neither
Parallel
Neither
Parallel lines have the same slope while Perpendicular lines have slopes that are the negative reciprocals of each other.
Let us check the relation between lines 1 and 2:

First, we rewrite and simplify line 1 into its slope-intercept form.

We now have the lines

Since they do not have the same slope and the slopes are not the negative reciprocals of each other, Lines 1 and 2 are neither parallel nor perpendicular.
Next, in Lines 1 and 3, we have:

Since they have the same slope, these lines are parallel lines.
Lastly, we have lines 2 and 3. We have:

Just like lines 1 and 2, since they do not have the same solution and are not the negative reciprocal of each other, lines 2 and 3 are neither parallel nor perpendicular lines.