Answer: The terms you provided appear to be Polish words that form a simple sequence: "czarny" (black), "piatek" (Friday), "kiedy" (when), "20" (twenty). Interpreted together, they likely ask: “When is Black Friday on the 20th?” However, Black Friday is traditionally the Friday after Thanksgiving in the United States, which falls on a date in late November and is not fixed to the 20th. In 2025, Black Friday occurs on November 28. If you meant “kiedy chodzi o 20,” or a date around the 20th of a month, please clarify which month or country you’re asking about, since Black Friday timing can vary by country and year. If your goal is to translate or practice Polish:

• czarny piątek = Black Friday
• kiedy = when
• 20 = twenty

Would you like me to confirm Black Friday dates for a specific country in 2025 or translate/expand this phrase into a short Polish example sentence?