Verbal Reasoning - Mental Ability Questions

In the following question, select the number which can be placed at the sign of ? from the given alternatives.

In a row of students, if John , who is 16th from the left, and Johnson, who is 8th from the right, interchange their positions, John becomes 33rd from left. How many students are there in a row?

'E' is related to 'BH' in the same way as 'N' is related to?

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

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

NVX, LTV, JRT, ?, FNP

Select the related word/letters/number from the given alternatives.
DI : M : : CR : ?

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

a_d_bd_ab_dd

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