Question 1:
The answer is angle 4.
Just imagine that both line m and line l are the same line.
Then, just find out which angle matches with what. Angle 1 matches with angle 5. Angle 2 matches with angle 6, and so on.
Thus, angle 8 will match with angle 4.
Question 2:
From what I said about angle 2 and 6 last question, we know that angle 2 and 5 cannot be corresponding.
The answer is alternate interior angles because angles 2 and 5 match the definition for alternate interior angles.
They are not same side interior because then angle 4 would match with angle 2.
They are not alternate exterior because angle 2 and angle 5 are not above line l and below line m (exterior angles).
Have an awesome day! :)