proof of fund question and landing related questions

[NeoJ]

Friends,

If I already have more than $13,213 in a Canadian bank account, would bank statement suffice as the proof of fund or I still need to get a letter? I am not in Canada now if I need to produce the letter, I can only do so in my home country. And if I have that proof of fund letter, do I still need to bring cash in the amount of $13,213?

And during landing, what are the questions the officer most asked?

Thanks