There may have even been certain instances where he really didn't know the answer to the question.
That's right. No one knows everything from A to Z except our learned bro GMS! Ramseth too.
I opine the issue here is one that involves honesty and integrity. The mighty TCH could have admitted he did not have the answers to questions asked. None of the students would have faulted him for that. They might even be impressed that despite his high standing as DPM and previous posts held, he was humble enough to acknowledge he simply did not have the right answers. Nothing to be ashamed or embarrassed. Therefore, there was absolutely no need to side step the questions. Maybe, just maybe, side stepping questions and issues a DNA of the MIWs?
I suspect TCH underestimated the qualities of some of our JC students. With his background, unlikely TCH was ever challenged previously. Everything went smoothly for him since birth. Now, suddenly kena from a JC student. Luckily for TCH and S'pore, he did not faint. If an ex-Rear Admiral and Minister of Defence faints from questions asked during a JC seminar, S'pore would be THE laughing stock on planet earth.
I worry not for Reuben. I worry for S'pore. If a DPM could not take control of a JC seminar, how is he going to take charge of a country? How on earth did he passed his test as Minister of Defence and his previous role in the Navy? TCH is fast becoming a big joke. I thought his lowest point was during the BE in HG. Looks like I was wrong. Let's all pray it won't get worse. Amen.