On a point of order, just to be clear on that point, there is a convention. I can quote the great Liberal chair Wayne Easter on that point, who said the following:
...each member is allocated so much time. We will stick to six minutes for the first round and five for the second [round], for questions and answers. As for the process, if there's an eight-second question, we expect the answer to be eight seconds.
That is a convention. It is practised in all committees, including committee of the whole yesterday. Witnesses are entitled to make opening speeches, and then we move to questions.