Which of the following pairs of words is Synonymous in their mutual relationship ?

Choose the correct synonym of the following word: CONUNDRUM

Identify the option closest in meaning to the underlined word:

Her presence was acknowledged with a perfunctory smile.

Find the word from the passage which is a synonym of the phrase :

"to make something pure by removing something undesirable".

Choose the correct answer from below :

Select the correct synonym for the word: BENEDICTION

Select the word closest in meaning to the word:

Denounce.

The little priest was not an interesting man to look at, having stubby brown hair and a round and stolid face which did not give away anything.

The word STOLID in the above sentence means: