Fill in the Blanks

“the mother of invention” is correct. It means a need or problem encourages creative efforts to meet the need or solve the problem.

“before their death” is correct because it completes the meaning of the proverb, which says that cowards have to face death many times in their thoughts and actions.

“a rod to the foolish” is correct. It means respect and acknowledge those with wisdom and correct those who are foolish or silly.

Option 1 and 4 are incorrect and irrelevant here. Option 2 i.e. 'threshold' means 'the entrance or beginning point of something'. The sentence implies the same, and hence it is the right answer.

Generally we seek opinion of the person who has 'vast and deep' knowledge. The sentence implies the same. Thus, 'comprehensive' is the right option as it means 'dealing with all or many of the relevant details; including much; inclusive'.

Case of vocabulary usage. Here we need a promising adjective. 'Officious manner' means ready to serve; obliging.  

Enthusiams is a positive connotation word. So we need a word with the same connotation. Contagious means spread by direct or indirect contact; communicable.  

As we know that the President of India is a titular head of the govt, so 'ceremonial' is the right choice. It means 'of, for, or consisting of ceremony; ritual; formal'.

“That ends well” is correct because if the outcome of a situation is happy, this compensates for any previous difficulty or unpleasantness.

“So shall you reap” is correct and it means your deeds, good or bad, will repay you according to how you behave.

“What you can do today” is correct and is said to emphasise that you should not delay doing something if you can do it immediately.

“While the sun shines” is correct as the proverb means to make the best use of the present.

“Than nothing” is correct because the sentence gives an indication that it is always better to have something that is not satisfactory than to have nothing at all.

“Is a devil’s workshop” is correct. It means people who have nothing worthwhile to think about will usually think of something bad to do.

“With one stone” is correct. It means to solve two problems at one time with a single action.