Verbal Reasoning - Mental Ability Questions

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

825 x 25 - 27 ÷ 10 = ?

In the following series, one letter is missing as shown by the question mark(?). Select the missing letter from the given options.

I, L, O, R, ?

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

GHXT, JKUQ, MNRN, PQOK, ?

Starting from his house, Manish moves 25 km towards south­east and then turns to the west and covers another 7 km. How far (in kilometres) is he now from his house?

Pointing to a boy in a photograph, Rani said "His mother's only daughter is my mother". How is Rani related to that boy?

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

Recalcitrant

Select the missing number?

Find the number of triangles in the figure.