Verbal Reasoning - Mental Ability Questions

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

36, 18, 6, 3, 1, ?

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

Accomodation : Rent :: Journey : ?

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

11 : 1210 : : 10 : ?

Select the missing figure based on the given related pair of figures.

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

8 : 32: : 6 : ?

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

ST : ZM : : KR : ?

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

ADFG : KNPQ :: DGIJ : ?

Arrange the following words as per order in the dictionary

1. Maternity
2. Matriarchy
3. Matchbox
4. Matricide