Solution to #6: Solve For X
This type of puzzle is a nonogram. The solution to the nonogram is:
The nonogram reads, "Z = Y/X". Knowing this, the title is an obvious clue for what to do next. Attempting to submit Y OVER Z as an answer, as many are likely to do, gives the response:
I don't want what X is equal to, I want what X is.
X is the denominator of the fraction Y/X.
DENOMINATOR