they don't generally ask any questions.....infact they greet u with a smile
my inlaws just went....and they finished the procedure in 15-20 mins .....without any questions asked
but some questions which have been asked to few other ppl just very basic questions-
What were you doing in country of current residence?
What status where you in your country of residency?
What is your Canadian address to mail your PR cards?
Are you moving to Canada for good or have a return trip? if u say you will return to your home country soon, some Immigration officers (IOs) might say that they cant process PR cards.. & so to enter Canada u need to get travel doc.. bla.. bla..
Have you ever been convicted/criminal offense?
Do you have any contagious disease?
How much CASH do you have?
Do you have goods to bring in later?
Why Canada?
so don't worry this is very rare they ask questions................pls do write your landing experience when u guys land so it can help some of us here waiting during our landin time
hope this helps ...