So one is illegal, the butterfly knife. One is marginal, CBSA uses its own rules for folders, so the flip knife will likely be held. If they even test it that is, if its marked flip knife, they will confiscate it. If they test it and it cannot by opened by flicking (unlikely) then it could make it through.
The other two are technically legal, but again, its hard to know what they might do, I don't know the protocol for partially legal shipments.
As an aside, these will be of very low quality and doubtless, of very little real use. Its okay if you like them aesthetically, but be aware that these sort of knives never really look like the picture.
Hope this helps!