My great uncle Ralph used to ask questions of me that were brain teasers, as you can tell he caused permanent damage.
He would say to me, How Long is a Chinaman.
I would give him all kind of heights and lengths and he would just smile and shake his head ever so slightly, and reply no, that is not the answer.
Finally he answered me with, Yes he is, and left me to stew about that for some time.
It took sometime but I finally figured it out, he wasn't asking me anything rather he was telling me that How Long was indeed, from China!