The rote repitition is not at all unlike what kindergarten and early elementary children do. Like repeating alphabets, basic numbers and multiplication tables. It is made for drillinng ideas in. You will notice that many WT catch phrases like "slave class" (and its iterations), "little flock", "other sheep", "sons of the kingdom", "wheat class", etc, are simply repeated without explanation. Some of the phrases are actually Bible phrases but the WT has succeeded in attatching their own unique meaning to them.
You should know concerning the questions for the paragraphs:
These should be considered every bit a part of the paragraph. The WT study conductors have been instructed not to rephrase the questions. The questions are designed to direct you towards a particular conclusion. And in doing so they will often short cut your thinking to prevent you from thinking along lines they don't want you to go.
I'll give you an example (because it was on my mind for other reasons.) :
In the Revelation Climax book on page 234, paragraph 38: The paragraph discusses Rev 16:18-21. Verse 19 starts out by saying, "And the great city was split into three parts." The "B" part of question 38 says,"What is symbolized by (b) the fact that "the great city," Babylon the Great, is split into "three parts."?
Here, the question identifies "the great city" for you. That, despite the fact that there are two different "great cities" in Revelation. The idea that it could be the other "great city" (from 11:8) is never allowed to come up.
Whoever said above about reading the paragraphs without the questions was on the right track. If you read the paragraphs without the questions you may very well get a different view of the material than what the WT intends.
BUT, you should also keep in mind that the paragraphs themselves also will contain thought stopping ideas and ideas to direct your thinking. Wading through all that, once you've become aware of it, can make reading WT literature very cumbersome to the mind.