Verbal Reasoning - Mental Ability Questions

Select the related word/letters/number from the given alternatives.
30 : 16 :: 24 : ?

If '+' means 'divided by', '­' means 'multiplied by', 'x' means 'minus' and ' ÷ ' means 'plus', which of the following will be the value of the expression:

16 ÷ 8 -­ 4 + 2 x 4 = ?

In a certain code language, “MOCKS” is written as “NNDJT”. How is “FLAME” written in that code language?

Which of the following interchanges in signs and numbers will make the given equation correct?
7 x 9 + 5 = 68

In a certain code language, "STATION" is written as "5313462" and "RED" is written as "789". How is "TRAIN" written in that code language?

A girl is standing facing towards the east. She turns 45 degree in the anticlockwise direction and then turns 180 degree in the clockwise direction. Which direction is she facing now?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
ZYX, VUT, QPO, MLK, HGF, ?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?

M_P_M_R_PM_PM_RR_P