Verbal Reasoning - Mental Ability Questions

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

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

If '+' means x, '-' means /, 'x' means + and '/' means -, compute the value of the expression

17 + 6 x 13 / 8

Complete the series

BCD ,RQP, LMN, TS?

In the following question, select the related word pair from the given alternatives.

Clothes : Tailor : : ? : ?

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

Eccrinology : Secretions :: Cardiology : ?

2 is to 55 as 6 is to

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

BIRD : AEROPLANE :: FISH : ?

Select the related number from the given alternatives.

64 : 8 :: 0.01 : ?