Loving this! Having some trouble on 39 and 44 (40-43 were relatively quick!).
Taking your cue and using rot13 go describe what i've attempted:
39: cerggl trahvaryl fghpx, v'ir zrffrq nebhaq jvgu fgnpxvat obkrf, svthevat bhg qvssrerag jnlf gb cbfvgvba gurz fb gung gur yrsg snpvat obk raqf hc bhgfvqr ba gur yrsg snpvat fvqr, chfuvat obkrf hc ntnvafg gur terl jnyy vafvqr bs gur obk gb zbir nebhaq, ohg ubarfgyl whfg ab cebterff.
44: v'ir pyrnerq gur K naq urneg (gubhtu xvaq bs jbaqrevat vs v nz fhccbfrq gb qb fbzrguvat orsber gung), naq vg frrzf gur bayl ivnoyr fcbg gb ghea bss gur ubyr ol gur qvnzbaq vf oruvaq gur tngr, ohg v pna'g svther bhg ubj gb erfphr gur 'bss' obk sebz gurer. boivbhfyl v pna'g chfu vg onpx bhg. v'ir gevrq gb znavchyngr gur cbegny fb v pbhyq chfu vg bagb gur bss obk naq fjnyybj vg gb ab ninvy. unir nyfb gevrq gb fbyir ol zbivat gur cbegny ba gur svefg fperra gbjneq gur oyhr pvepyr tngr, ab qvpr. ohg v thrff gy;qe v'ir ng yrnfg svtherq bhg ubj gb pyrne bhg gur k naq urneg tngrf.