Verbal Reasoning - Mental Ability Questions

In the following question, select the related number from the given alternatives.
49 : 169 : : 66 : ?

Select the related word/letters/number from the given alternatives.
34 : 81 : : 23 : ?

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

30, 60, 360, 3600, ?

In a certain code language, "BAD" is written as "7" and "SAP" is written as "9". How is "BAN" written in that code language?

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Biological

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

ENG, GQI, ITK, KWM, ?

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Countermand

How many triangles are there in the given figure?