By the definition, I think only about half are true paraprosdokians.
1, 2, 4, 6, 7, 8, 9, 12, 13, 18, 20, 21, 22, 24, 25, 28, ,30, 31, 33, 34, 35, 38, 40 and 41
and even a few of those are marginal.
The rest are funny observations or truisms.
But never mind. They're fun to think about.