Verbal Reasoning - Mental Ability Questions

If "A" means "plus", "B" means "divide", "C" means "multiply" and "D" means "minus", then 187 B 17 C 4 A 7 D 17 = ?

Sumitra remembers that her mother's birthday is after 13th February but before 16th February but her brother remembers that his mother's birthday is after 14th February but before 17 th February. On which date Sumitra's mother's birthday will be celebrated?

Select the related word/letters/number from the given alternatives.
Luminous intensity : Candela : : Pressure : ?

In a certain code language, "NATURE" is written as "TANURE". How is "LISTEN" written in that code language?

In a certain code language, “LUNGS” is written as “OWQIV”. How is “HEART” written in that code language?

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

LT, MS, NR, OQ, ?

Pointing towards a girl, Chetan said "She is the daughter of the only child of my grandmother". How is Chetan related to that girl?

Select the related letters from the given alternatives.
WVT : SRP :: MLJ : ?