Verbal Reasoning - Mental Ability Questions

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?

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

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

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

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 : ?

In the following question, select the related letters from the given alternatives.
JQXE : LSZG : : MTNL : ?

Arrange the given words in the sequence in which they occur in the dictionary.
1. Xenons
2. Xylyls
3. Xanthic
4. Xenians
5. Xyst