Verbal Reasoning - Mental Ability Questions

If mathematical operators '-' and '/' are interchanged, then the value of 15 x 4 ÷ 15 - 11 x 33 ÷ 98 is

In the following question, select the related letter from the given alternatives.
DE : O : : AF : ?

How many triangles are there in this geometric figure?

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

AL, EP, IT, MX, ?

In the following question, select the related word pair from the given alternatives. Pascal : Pressure : : ? : ?

From the given alternative words, select the word which cannot be formed using the letters of the given word:

EXORBITANT

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
1, 5, 30, 210, 1680, ?

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

56 ÷ 8 + 12 - 72 = ?