So I've send a letter size document from Toronto, Canada to Taiwan on May 20th.
After I check the Canada post tracking status for RW986894400CA, it showed that its in Beijing, China on May 26th with no further information... And then I found this awesome useful website.

In here it showed that my letter's been through custom import and custom export, now it is sent to airline on May 28th with no further info as well. I understand that it takes 2-4 weeks for it to arrive its destination as you stated, I just have several question though...

1. Does it take that long even if it's going to somewhere close like Taiwan?

2. Is it really normal when you send a letter from Canada to Taiwan but then ended up in China?

3.Will my letter arrive in Taiwan as it suppose to be or will it go back to Canada?

I really hope someone can answer my questions cause this is really making me nervous..

Thank you very much!!