Verbal Reasoning - Mental Ability Questions

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

8,24,12,?,18,54

In the following question, select the related word from the given alternatives.
Ampere : Electric current : : Fathom : ?

Ram travels towards east covering 5 km. He takes a left turn and travels 10 km more. Then, he takes a right turn and travels another 5km and finally takes a right turn to cover 10 km. How far is he from his original position?

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 a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
60 x 5 + 3 ÷ 24 - 6 = ?

In a certain code language, "ENERGETIC" is written as "ETICGENER". How is "CARTRIDGE" written in that code language?

Choose the most appropriate word ‘ACCIDENT’ is to ‘CAREFULNESS’ as ‘DISEASE’ is to

Arrange the given words in the sequence in which they occur in the dictionary.
1. Decollete
2. Desecrate
3. Decorous
4. Desipicable
5. Destitute