en_tn_lite_do_not_use/job/15/09.md

What do you know that we do not know?

The implicit answer here is "nothing." This question can be written as a statement. Alternate translation: "There is nothing that you know that we do not know." or "Everything you know, we also know." (See: rc://en/ta/man/translate/figs-rquestion)

What do you understand that is not also in us?

This speaks of the men having understanding as if it were something "inside" them. Alternate translation: "Everything you understand, we also understand." or "We understand everything that you understand." (See: rc://en/ta/man/translate/figs-rquestion)