Which of the following is a key requirement from each

PLUMBER : WRENCH :: PHILOSOPHER : 

Select the most appropriate word for the given group of words. 

Something of little value or importance

Select the most appropriate ANTONYM of the given word.

INFINITE

Many national surveys ______ that malnutrition is common in developed countries.

Select the most appropriate option to improve the bold segment in the given sentence. If there is no need to improvement it,select, no improvement.

Select the most appropriate word to fill in the blank.

She ___on paying the bill at the restaurant.

Select the most appropriate ANTONYM of the given word.

APPLAUD

Select the most appropriate meaning of the given idiom.

Herculean task