2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60127Partially or totally unsolved questions in number theory and geometry especially, such as coloration problems, elementary geometric conjectures, partitions, generalized periods of a number, length of a generalized period, arithmetic and geometric progressions are exposed.38 pages, Published in "Only Problems, Not Solutions!", by Florentin Smarandache, Xiquan Publ. Hse., Phoeix, 1991General Mathematics11B83text