What are Literal and Inferential and Evaluative Questions?

Literal, Inferential and Evaluative Questions
Literal, Inferential and Evaluative questions are the three main sections of a comprehension task. It is regularly used to assess the level of a person's comprehension skill. Literal is mainly the easiest group, Inferential is the medium level and the Evaluative is the difficult part. However, some people do not consider these as these levels. It depends on their comprehension skills.
Literal - A question that can be answered directly from the text. The answer is already there. It is just if you can identify it. Sometimes you would need to word it.
Inferential - A question that cannot be answered straight from the text. You will need to think about it and read over the text to see. The text only tells you hints and clues. Sometimes you would need to word it.
Evaluative - Evaluative questions are very similar to Inferential Questions. However, Evaluative sort of sums up the text and ask you to judge something of the text such as; the meaning, truth, answer, opinion and etc. Sometimes you would need to word it.

TEXT EXAMPLE  

Tim was desperate to leave the classroom. He was bored. He watched the clock wisely. It was only 12:30pm. He had to wait for an hour until the lesson is finished. He was learning maths - algebra. Mr. Howl was making him do heaps of boring and hard equations. Suddenly, he had an idea. Tim hid under his table and crawled onto the floor. He headed for the door and sneakily left.
Literal:
What did Tim do while Mr. Howl was making him do maths work?
Tim was looking at the clock wisely. (Direct answer is on the text)
What was the time?
It was 12:30pm then. (Answer already on the text)
Inferential:
When can Tim leave the classroom?
Tim can leave the classroom by 1:30pm. (Using the hints on the text)
Why did he look at the clock wisely?
Tim was looking at the clock wisely because he wanted to get out of the classroom. (Using the hints on the text))
Evaluative:
What do you think Tim's idea will work? Explain your answer.
I don't think Tim's idea will work because Mr. Howl must of notice during that hour...
Why would Tim hide under the table?
Tim hid under the table because he didn't want to be seen. (Using commonsense + hints on the text + your own opinion)