Verbal Reasoning - Mental Ability Questions

Pointing towards a girl, Rajan said, she is the daughter of my mother's daughter. Then how is the girl related to Rajan?

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 = ?

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=?

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

Introducing a girl, Pooja says, "Her mother's son is the nephew of my father". How is the girl related to Pooja?

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, ?

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

50 + 3 ÷ 125 x 5 - 25 = ?

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