Verbal Reasoning - Mental Ability Questions

Choose the related word/letters/number from the given alternatives.
NPR : GHI : : TVX : ?

Ryaan is Vehaan's mother's sister's father's only son's son. How is Ryaan related to Vehaan?

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.
 
15 x 4 ÷ 35 - 70 + 16 = ?

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then 126 x 14 + 7 - 3 ÷ 2 = ?

If '+' means 'x' , '­' means '÷' , 'x' means '­' and '÷' means '+' , then what will be the value of 16 ÷ 4 x 10 ­ 5 + 8 = ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
VWX, BCD, HIJ, ?

Select the related word/letters/number from the given alternatives.
MUMBAI: UMBMIA :: GURUGRAM : ?

If 29$14 = 6, 37$25 = 3 then what is the value of 84$62 = ?