Verbal Reasoning - Mental Ability Questions

In the following question, select the related word from the given alternatives.
Mathematics : Formulas : : Chemistry : ?

In a certain code, 592 means 'grapes are sweet', 374 means 'I like oranges' and 267 means 'oranges are sour'. Which digit represents sour?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
A, C, F, H, K, ?

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

2, 3, 5, 9, 17, ?

From the given words, select the word which can be formed using the letters of the given word.
AMPLIFICATION

Which one of the following figures best represents the relationship among Kitchen, House and Garden?

Select the related word/letters/number from the given alternatives.
GT : IV : : KX : ?

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