Verbal Reasoning - Mental Ability Questions

From the given words, select the word which can be formed using the letters of the given word.
AMPLIFICATION

If South-East is changed to North and North-East to West and so on, then what will come in place of South?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

a_d_bd_ab_dd

In the following question, from the given alternative words, select the word which can be formed using the letters of the given word.
CAPITULATE

From the given alternative words, select the word which can be formed using the letters of the given word:

COMMUNICATION

If 6#30=5; 8#24=3; 7#28=4; then what is the value of 8#40=?

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

76, 38, 19, 9.5, ?

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

1.5, 9/4, 3, ? , 4.5, 21/4