Which singular : plural pair is correct?

1.Which of the following is analogous $\to$ ''Refinery : $Petroleum^{\prime}$'?

2.––– is hire a tutor who can help them with their math skills.

3.Identify the word in the plural form :

4.A cartographer makes ––––.

5.The synonym of '$perplexed^{\prime} is$ –––.

6.I saw a ––– of monkeys is the forest.

7.What is the antonym of '$sluggish^{\prime}$?

8.He gave up ––– football when he got married.

9.The feminine form of '$tailor^{\prime} is$ –––.

10.Choose the correct sentence.

11.A process involving too much official formality is called –

12.Misanthropist is a person who –––.