Verbal Reasoning - Mental Ability Questions

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

If 6 * 9 – 4 = 58 and 3 * 9 – 7 = 34, then in the expression A * 4 – 9 = 91, what is the value of 'A'?

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

80 x 16 ÷ 4 + 2 - 8 = ?

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

100, -20, 4, ? , 0.16, -0.032

14 notebooks of a class were corrected with ink pen while 22 notebooks were corrected with colour pencil. If 4 notebooks were corrected with both, what is the strength of class?

If 9@7=4; 6@1=10; 7@4=6; then what is the value of 8@2=?

Which one of the following diagram represent the relationship among Parliament, Council of Ministers and Prime Minister?

Options:

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

DJO, EKP, FLQ, GMR, ?