Verbal Reasoning - Mental Ability Questions

What should come in place of question mark (?) in the following number series?

1, 244, 163, 190, 181, ?,

Select the related word/letters/numbers from the given alternatives:

5 : 124 :: 7 : ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

6 x 18 + 40 ÷ 30 - 10 = 20

Select the related word/letters/numbers from the given alternatives:

5 : 30 :: 7 : ?

Select the related word/letters/numbers from the given alternatives:

ACEG : BDFH : : PRTV : ?

Select the related word/letters/number from the given alternatives.

97 : 63 : : 67 : ?

Select the related word/letters/number from the given alternatives.

2 : 10 : : 3 : ?

Select the related word/letters/numbers from the given alternatives:

12 : 39 :: 15 : ?