Ask HN: What would you do with €25K?

I recently inherited around €25K. What should I do with it?

Some background about me. Age: late 30s, single, male, living in Eastern Europe, engineer by training, currently in talks for a new job. Decent living conditions in a mid-size town, having my own apartment. No mortgage, no loans, no savings, no hobbies or special interests, no pets, no car, no addictions.

All suggestions are welcome.