Direction: What should come in place of the questions mark (?) in the following letter series?
a, k, e, o, i, s,  ? __ ? _ , q , a , u , e 

4, 32, 128, (…)

Find the odd number from the given alternative.

Study the given pattern carefully and select the number that can replace the question mark(?) in it.

Three of the following four words are alike in a certain way and one is different. Pick the odd word out.

Starting from house Abhijit walked 30 meters in North west direction. Then he walked 30 m. in south - west direction. Then he walked 30 m. in north - east direction. Now he is how much distance away from his house. 

Pond is related to Water in the same way as Mountain is related to:

In a row of forty boys facing South. A is ten to the left of C who is thirty eight to the right of D. What is position of A from West in row?