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

Find the number of triangles?

The different positions of the same dice are shown. How many dots will be on the top in four dots are at the bottom?

Given set
10, 12, 15

17 : 60 : : 20 : ?

What will come in the place of question mark?
AKL, BPM, YQN, ZJO, ?

In the following figure, the rectangle represents the artists, the triangle represents the writers, the circle represents the social workers and the square represents the father. Which group of letters represents social workers who are not fathers?

Select the option that is related to the sixth number in the same way as the first number is related to the second number and the third number is related to the fourth number.
34 : 12 :: 28 : 16 :: ? : 15