He attended primary school at Papilys, graduating in 1908; he studied at the Saulė (The Sun), taking courses for teachers and at Biržai progymnasium.

In 1910 he entered the school of agriculture in Voronec (near Švenčionys), but for the lack of funds moved to Vilnius in 1913 and began to prepare himself privately for matriculation examinations.

In 1909, Binkis began to publish prose and verse in Viltis (The Hope), Vaivorykštė (The Rainbow), and Pirmasis baras (The First Field).

There he worked at the press bureau, volunteered for the Geležinis Vilkas (The Iron Wolf) regiment and participated in concerts.

Encouraged by the success of his debut, he started writing a new play Generalinė repeticija (Dress Rehearsal) which he did not complete.

At the Yad Vashem Holocaust memorial in Jerusalem, there is a tree planted, commemorating Sofia and Kazys Binkis as among the "Righteous Among the Nations" (number 660).