5 : 30 : : 7: ?

In the following question, Letter pair is given and one Letter group is missing from one pair. Choose the correct option.
BDF: GIK:: MOQ:? 

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

a_b_a_c_a_bc

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?

Find the missing number?

Umesh is taller than Satish, Suresh is shorter than Neeraj in length but taller than Umesh. Who is the tallest among them?

Find the odd number from the given alternative.

Direction : Study the following information   carefully and answer the given questions:
A word and number arrangement machine, when given an input line of words and numbers, it rearranges them following a particular rule. The following is an illustration of input and rearrangement.
Step I: alter 25 93 as hill stamp bolt 45 34 63 total 13 alter rise
Step II: alter as 93 hill stamp bolt 45 34 63 total rise 25 13
Step III: alter as bolt 93 hill stamp 45 63 total rise 34 25 13
Step IV: alter as bolt hill 93 stamp 63 total rise 45 34 25 13
Step V: alter as bolt hill rise 93 stamp total 63 45 34 25 13
Step VI: alter as bolt hill rise stamp total 93   63 45 34 25 13
Step VI is the last step of the above arrangement as the intended arrangement is obtained.
As per the rules followed in the above steps, find out in each of the following questions the appropriate steps for the given input.
Input: ropes 12 33 strong 35 19 in blue ample kite 47 77 57

Which of the following is fifth from the left end of step V in the above arrangement?