Verbal Reasoning - Mental Ability Questions

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

PE_NP_ON_EO_

If + means /, / means -, - means x, x means +, then 10 + 5 / 7 - 4 x 30 = ?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first numberby a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one.

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

ab_bc_bb_ _abb_c

Choose the pair which is related in the same way as the words in the first pair from the given choices.

PIGEON : PEACE :: WHITEFLAG : ____

The weights of 4 boxes are 30, 40, 50 and 100 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. Select the correct alternative from the given ones that will complete the series.

SH, QJ, OL, ?, KP

Select the related word/letters/numbers from the given alternatives: 6 : 42 :: 12 : ?