1 roughly how many kilometers of track does the eastern and oriental
express cover between Singapore and Bangkok ?

2 what business does Montreal attract more than any other Canadian
city ?

Hello cooky88

1. “The E&O runs from Singapore north to Bangkok (and vice versa)
passing through the city state of Singapore, Malaysia and Thailand
covering in total 1,943 kilometres/1,165 miles.”
http://www.travelwithachallenge.com/Train.htm 

2. Since your question is about tourism, the best answer to your
second question is that Montreal attracts the most festival business
of all cities in Canada:

“No place in Canada has more festivals than Montréal.  By far The
Montréal Jazz Festival is the most famous event, and jazz legends from
around the world play to packed houses from late June until early
July.  The Just For Laughs Festival is among the largest comedy
festivals in the world. “
http://www.skedaddle.ca/dest.html

The World Film Festival is another important event, but there are many
other international and national festivals.
For listings of festivals in Montreal: 
http://www.menumontreal.com/html/events.htm
http://english.montrealplus.ca/feature/8532/festivals.html
 
Search strategies:
1. Singapore Bangkok miles track express
2. A rather vaguer approach!  Since the question is about tourism, I
started by searching on “Montreal” combined with “tourism” or
“tourists”   Many of the pages had references to the festivals, so I
searched on: Montreal festivals.  This led me to the quotation cited
above.