1) Do you prefer to build your own PC’s or buy a branded system?
Depends on the need: for budget PC's I'll buy branded, for "performance" I'll build my own.
2) How often do you replace or upgrade your PC?
IRS only allows every 3 years, so I have three ... that way, I can replace annually

3) How important do you feel an SSD is to system performance?
In and of itself, it will improve system performance, but it depends on the performance of the rest of the machine as to how important that improvement is.
4) [Canadian residents] What is 120 plus 45 divided by 4 minus 11?
Not Canadian, but:
(((120+45)/4)-11) = 30.25
((120+45) /(4-11))= -23.57142857142857
(120+(45/4)-11) = 105.25
depending on the order of computation ...