Verbal Reasoning - Mental Ability Questions

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

? , 9, 19, 39, 79

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

CD, ? , MN, UV, EF

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

Which of the following interchanges in signs and numbers will make the given equation correct?
8 x 6 + 4 = 52

What will come in place of the question mark (?) in the following number series?14, 18, 9, 25, 0, ?

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

Select the related number from the given alternatives.
3/7 : 7/3 :: 9/2 : ?

Select the related word/letters/number from the given alternatives.
Ctrl+X : Cut : : Ctrl+C : ?