Verbal Reasoning - Mental Ability Questions

Rajaram's son's sister's mother is Ramani. How is Ramani related to Rajaram?

In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.

3 ÷ 12 - 40 + 5 x 20 = ?

If 23 x 16 = 184, 37 x 10 = 185, then 85 x 12 = ?

If ALPHA = 36, BETA = 26 then DELTA = ?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
25 + 10 ÷ 240 x 16 = ?

Spandana is the sister of Raju. How is Raju's father's sister related to Spandana?

Arrange the given words in the sequence in which they occur in the dictionary.
1. Effacers
2. Effacing
3. Effaceable
4. Effacements
5. Effacement

In the following question, select the related word from the given alternatives.
Kilometre : Metre : : Tonne : ?