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.

Thousand, Ten thousand, Lakh, Ten lakh, ?

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

6, 18, 54, ? , 486, 1458

In the following question, select the number which can be placed at the sign of ? from the given alternatives.

Select the related word/letters/numbers from the given alternatives:
3 : 243 :: 5 : ?

Arrange the given words in the sequence in which they occur in the dictionary.
1. Dillydallying
2. Dillydallied
3. Dillydally
4. Dilled
5. Dillydallies

A man starts from point 'O', travels 20 km towards east to reach point 'A', turns right and travels 10 km to reach point 'B', turns right and travels 9 km to reach point 'C', turns right and travels 5 km to reach point 'D', turns left and travels 12 km to reach point 'E' and then turns right and travels 6 km to reach point 'F'.

What is the shortest distance between point 'E' and point 'C'?

In certain code, if 'AMOUNT' is written as 'BNPTMS', how is 'AROUND' written in that code?

In the following question, select the related letters from the given alternatives.
BPTW : CQUX : : CHNS : ?