In the series 9 N ! 3 P Q 6 E 1 V # 8 L 2 Z 7 A, which element is fourth to the left of the third element from the right end?

The third element from the right end stands at place 17 − 3 + 1 = 15, the letter Z. Four places to its left is place 11, holding #. The 8 at place 12 and the L at place 13 are the slips of counting only three steps or only two, and V at place 10 is one step too far.