55 and 58 should be unavoidable when doing Nova's quest (found by going to the Lower Quarters after Noadiah's invasion), though the unavoidability may be subject to having x/m content toggled on/off. I play with it off, and I have never been able to miss 55 and 58. 60 is found by choosing to let the spell go at the end of the quest instead of pushing through.
64: click on the coat of arms on the Stonehold map. 65: click on the middle candle flame in Lady Carhen's house while looking for the invitation.