Verbal Reasoning - Mental Ability Questions

Select the related word/letters/number from the given alternatives.
34 : 81 : : 23 : ?

If ' + ' means minus , ' - ' means multiplication , ' ÷ ' means plus , and ' x ' means division , then 15 - 3 + 10 x 5 ÷ 5

If + means ÷, ­ means x, x means ­ and ÷ means +, which of the following will be the value of expression 16÷8­4+2x4=?

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

Introducing a woman, a boy says, "She is the wife of my grandfather's son". How is the woman related to the boy?

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 15#2 = 26, 11#3 = 16 and 10#9 = 2, then find the value of 11#4 = ?

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

1, 0.25, 1/9, ? , 0.04, 1/36