Vilʹnoï hodyny
Subtitle: zbirka rebusiv, sharad, lohohryfiv, matematychnykh zavdanʹ, tanhram, stomakhion ta inshykh rozvah
By: A. Voronet͡sʹ
Publisher: Knyhospilka
Published: 1930
Place of publication: Kharkiv
Language: ukr
Number of pages: 145
Subjects: Puzzles; Games; Ukrainian Riddles