Verbal Reasoning - Mental Ability Questions

If -2@-4 = -8, -1@-8 = -8 and -1@6 = 6, then find the value of -1@7 = ?

If "A" denotes "added to", "B" denotes "divided by", "C" denotes "multiplied by" and "D" denotes "subtracted from", then

76 B 19 C 7 A 3 D 25=?

In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.

10 + 20 x 10 ÷ 20 - 8 = ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
RS, ZA, HI, ?

In the following question, select the related letters from the given alternatives.
JPSW : LQUX : : MRFT : ?

Select the related word/letters/number from the given alternatives.
DI : M : : CR : ?

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

RTM, QRJ, PPG, OND, ?

If 'x' means 'addition', '­' means 'division', '/' means 'subtraction' and '+' means 'multiplication', then which of the equation is correct