I'm really starting to think some questions has the wrong answer, how do we let you know?

Answer 1

If the question is posted in the q & a, then post the correct answer and give the necessary explanations to prove your point.

Answer 2

Oh, do you mean the challenge quizzes?

Answer 3

Just tell them that they’re answer isn’t correct.

Answer 4

The question dissappears after timeout so its difficult to go back to.