The Herculean @Demonstone has provided us with, by my count, 47 maddening conundrums over the last 4-odd (very odd?!) years. Moreover, in those 47, he's managed to alliterative entitle them with 19 of the 26 letters of the alphabet.
I open this thread in honour of Mr Stone and:
1. Challenge him to raise his bat for a historic half-century; and
2. Challenge us to complete the alliterative set.
G, H, R, U, V, W and X appear to remain. I reserve X (gulp) for myself!