Verbal Reasoning - Mental Ability Questions

What will come in place of the question marks (?) in the following Number series?8, 14, 26, 44, 68 (?)

Introducing a girl, a boy says, "She is the daughter of my father's only brother­in­law". How is the girl related to the boy?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
K, J, L, I, M, ?

If X has two sisters - Y and Z, and W's mother is the sister of Y's father, then W is Z's ___.

Kishan is the son­in­law of Rajesh's father­in­law. Rajesh's wife has a younger sister. How is Rajesh related to Kishan?

If A means +, B means ×, C means ÷, D means −, then the value of given equation will be?

Select the related word/letters/number from the given alternatives.
JS : QH : : VW : ?

How many triangles are there in the given figure?