Verbal Reasoning - Mental Ability Questions

Select the related letters from the given alternatives.
DFI : ACF :: OQT : ?

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then

7 V 13 M 35 L 7 S 6 = ?

Select the related word/letters/number from the given alternatives.
34 : 81 : : 23 : ?

Prem starts to school from his house and walks 400 metres towards north, turns left and walks 100 metres, turns left and walks 200 metres, turns left and walks 100 metres. How far he is away from his house?

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Biological

Rearranging the letters "AKBLU", we get the capital of ____

If 6#30=5; 8#24=3; 7#28=4; then what is the value of 8#40=?

In a row of swimmers Manish, is 23rd from the left end. Ramesh is 11 ranks to the left of Manish. If Ramesh is 16th from right end, then how many swimmers are there in this row?