There is no questionnaire to apply for a renewal of a PR card. You fill out the forms here: http://www.cic.gc.ca/english/information/applications/prcard.asp and send them in along with the documents mentioned.
To apply for citizenship, you fill out the forms found here: http://www.cic.gc.ca/english/information/applications/adults.asp and if you qualify, they will at some point ask you to take the test: http://www.cic.gc.ca/english/citizenship/cit-test.asp and if you pass, they will invite you to attend the oath and then you become a citizen.
