DIRECTIONS: Study the following arrangement carefully and answer the questions given below.
W 3 # R @ E J K T 4 B 9 I H D U 8 1 H % A V 5 δ 7 M P 2 Q $ 6

Which of the following is the sixth to the right of the twenty-first from the right end of the above arrangement?

6 : 29 :: 24 : ?

127, 131, 139, ?, 151, 157, 163, 167, 

Find the number of triangles?

Murali takes his dog for a walk. He turns left at a cross road and faces South. Towards which direction was he walking before turning left?

72 : 18 : : 56 : ?

The positions of the first and the second digits in the number 85341279 are interchanged. Similarly, the positions of the third and the fourth digits are interchanged and so on till the positions of the seventh and the eighth digits. Which of the following will be the third to the right of 3 after the rearrangement?

Yard is to inch as quart is