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?

42 x 7 ÷ 7 + 9 - 62 = ?

If 75$26 = 4, 69$53 = 7 then what is the value of 82$46 = ?

There are five friends I, J, K, L and M. K's income is more than L's income but lesser than M's income. J's income is the least. I's income is lesser than K's income. Whose income is the maximum?

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, ?

If 13*45 = 29 ,
24*58 = 41 ,
74*32 = 53 ,
what should 97*47 be?

If Usha is taller than Nisha; Nisha is taller than Asha; Alka is taller then Usha. Harsha is shorter than Asha; then who among them is the tallest?

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

3, 7, 13, 27, 53, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
DP, EY, FJ, ?