> Beijing, if you ask somebody directions to a street that they don't know, they will adamantly indicate that they know and it's that way (a random direction) in order to not say they don't know the true direction

I didn't find this statement to be true at all. Chinese people will just say they don't know and move on.

I think your professor lead you guys on with blatant orientalism. Sad that money was exchanged to hear his opinions.