Verbal Reasoning - Mental Ability Questions

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

MAN, ODR, QGV, SJZ, ?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
XIIIII, IXIIII, IIXIII, IIIXII,IIIIXI, ?

If 3#5 = -20, 1#4 = -30 and 6#5 = 10, then find the value of 4#9 = ?

If EFMIJ means DELHI, then the last letter of the word got by decoding IQBOS is

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

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

The weights of 4 boxes are 100, 70, 50 and 90 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

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

EF, K, JK, U, OP, ?