In a certain code SISTER is written as RHRSDQ. How is UNCLE written in that code? 

How many triangle in the given figure?

1, 2, 3, 4, 5 and 6 have written on surface of dice. Four forms of dice shown below. In this dice which digit will be on the surface opposite to the digit 3?

A man walks 10 km in north and turns right and walks 20 km. A gain he turns right and walks 50 km if he is 20 km west from the initial point. Now find that distance how much he walk from initial point. 

In each of the following questions, select the related word/ number/ letter from the given alternatives.

15 : 2601 : : 23 : ? 

Four forms of a dice are shown below. In this dice which word will be on the surface opposite to the word D?
 

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

Find the area which shows students studying biology and computer but not mathematics.