Which of the following statement is/are incorrect

In the following questions four words are given in each question, out of which only one word is correctly spelt. Find the correctly spelt word.

Select the most appropriate synonym of the given word

LIVELY

Select the correctly spelt word.

Facade

Choose the word that is most nearly similar in meaning to the given word-

ELUCIDATE

Which of the following is an antonym of "harmful"?

Select the most appropriate synonym of the given word. 

RELUCTANT

Consequent

Select the misspelled word.

Person who finds it difficult to go to sleep