Verbal Reasoning - Mental Ability Questions

If 70*10 = -7, 50*5 = -10 and 10*5 = -2, then find the value of 80*1 = ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. ? , Kerosene, Diesel, Fuel oil

Identify the correct combination of mathematical signs to replace "*" sign in the given equation and balance the equation.

14*6*3*5*4*20

Punit said to a lady, "The sister of your father's wife is my aunt". How is the lady related to Punit?

Select the related word/letters/number from the given alternatives.
EFGH: LNPR : : ABCD : ?

If '­' means 'x' , 'x' means '+' , '+' means '÷' and '÷' means '­' , then what will be the value of 40 x 12 + 3 ­ 6 ÷ 60 = ?

In the following question, by using which mathematical operators will the expression become correct?
27 ? 9 ? 18 ? 24 ? 12

If MOMENTUM is coded as EMOMNTUM , then MAGNETIC will be coded as?