Verbal Reasoning - Mental Ability Questions

In the following question, select the related number from the given alternatives.
ACOUSTIC : 91 : : RENOUNCE : ?

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

206, 309, 412, ?, 618, 721

Pranav went 10 Km to the North. Then he turned West and covered 10 Km. Then he turned south and covered 5 Km. Finally, he turned to the East and covered 10 Km. In which direction he is from the starting point?

If + means ÷ , ÷ means ­- , ­- means x and x means + , what will be the value of the following expression:

8 + 4 ÷ 3 x 5 ­ 9 = ?

In the following question, select the number which can be placed at the sign of ? from the given alternatives.

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

45 x 5 - 24 + 3 ÷ 80 = ?

Pointing a man, Suraj says, "He is the son of the sister of my father's wife". How is that man related to Suraj?

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