Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the given series. 2, 12, 36, 80, 150, ?

67) Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the given series. M, N, O, L, R, I, V, ?

68) A and B are brothers. C and D are sisters. A's son is D's brother. How is B related to C?

69) Introducing a man, a woman said, 'His wife is the only daughter of my father'. How is that man related to the woman?

70) A man is facing West. He turns 45 degree in the clock-wise direction and then another 180 degree in the same direction and then 270 degree in the anti-clockwise direction. Which direction is he facing now?