How many triangles are there in the given figure?

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

Four of the following five are alike in a certain way based on their positions in the above arrangement and so form a group. Which is the one that does not belong to that group?

Choose the word which is least like the others word in a group?

Vivek and Ashoka start walking from a certain place. Vivek walks 3 km towards north and turns right and walks 4 km. Ashoka turns 5 km towards west and turns to right and walks 3 km. Now how far are they from each other?

Study the diagram below and identify the region representing girls who are employed but unmarried.

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
m_ane_nma_men_eam_an 

In each of the following questions, four numbers are given out of which three are like in some manner while one is different. Choose the one which is different from the rest three?

Select the option that is analogous to the given pair.
CD : HI