Verbal Reasoning - Mental Ability Questions

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

_n_p_no_m_ _p

Find the missing number in the given question/

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

80, 130, 190, 260, ?

Ram said , "Sita is my paternal great grandfather's only son's only daughter-in-law". How is Sita related to Ram?

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

YZ, GH, OP, WX, ?

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

PMO, LIK, HEG, DAC, ?

Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words.

Knight: Rook: Bishop

Find the number of triangles in the figure.