| Deutsch | deu-000 |
| schwierige Frage | |
| العربية | arb-000 | أحجية |
| العربية | arb-000 | بازل |
| العربية | arb-000 | لغز |
| العربية | arb-000 | معضلة |
| беларуская | bel-000 | галаваломка |
| български | bul-000 | главоблъсканица |
| català | cat-000 | endivinalla |
| čeština | ces-000 | hlavolam |
| čeština | ces-000 | hádanka |
| čeština | ces-000 | problém |
| čeština | ces-000 | záhada |
| Cymraeg | cym-000 | pos |
| Deutsch | deu-000 | Frage |
| Deutsch | deu-000 | Rätsel |
| Deutsch | deu-000 | schwierige Angelegenheit |
| Deutsch | deu-000 | schwierige Aufgabe |
| Deutsch | deu-000 | schwieriges Problem |
| eesti | ekk-000 | mõistatus |
| ελληνικά | ell-000 | αίνιγμα |
| English | eng-000 | challenge |
| English | eng-000 | difficult problem |
| English | eng-000 | difficult question |
| English | eng-000 | enigma |
| English | eng-000 | mystery |
| English | eng-000 | perplexity |
| English | eng-000 | puzzle |
| English | eng-000 | puzzler |
| English | eng-000 | quiz |
| English | eng-000 | riddle |
| Esperanto | epo-000 | divenludo |
| Esperanto | epo-000 | enigmo |
| français | fra-000 | casse-tête |
| français | fra-000 | colle |
| français | fra-000 | devinette |
| français | fra-000 | mystère |
| français | fra-000 | puzzle |
| français | fra-000 | question délicate |
| français | fra-000 | sujet difficile |
| français | fra-000 | énigme |
| Gàidhlig | gla-000 | ceist |
| galego | glg-000 | adiviña |
| Srpskohrvatski | hbs-001 | zagonetka |
| Srpskohrvatski | hbs-001 | загонетка |
| magyar | hun-000 | rejtvény |
| bahasa Indonesia | ind-000 | orang atau soal sulit |
| íslenska | isl-000 | gestaþraut |
| íslenska | isl-000 | þraut |
| italiano | ita-000 | enigma |
| italiano | ita-000 | indovinello |
| 日本語 | jpn-000 | パズル |
| 日本語 | jpn-000 | 難件 |
| 日本語 | jpn-000 | 難問 |
| 日本語 | jpn-000 | 難問題 |
| 日本語 | jpn-000 | 難題 |
| latine | lat-000 | aenigma |
| lietuvių | lit-000 | galvosūkis |
| македонски | mkd-000 | гатанка |
| македонски | mkd-000 | загатка |
| reo Māori | mri-000 | panga |
| Nederlands | nld-000 | hersenbreker |
| Nederlands | nld-000 | puzzle |
| Nederlands | nld-000 | raadsel |
| bokmål | nob-000 | gåte |
| polski | pol-000 | zagadka |
| polski | pol-000 | łamigłówka |
| português | por-000 | adivinha |
| português | por-000 | charada |
| português | por-000 | enigma |
| русский | rus-000 | вопрос |
| svenska | swe-000 | gåta |
| svenska | swe-000 | huvudbry |
| ภาษาไทย | tha-000 | ปัญหา |
| ภาษาไทย | tha-000 | สภาวะที่ซับซ้อน |
| ภาษาไทย | tha-000 | เรื่องฉงนสนเท่ห์ |
| Türkçe | tur-000 | anlaşılmaz şey |
| Türkçe | tur-000 | bulmaca |
| tiếng Việt | vie-000 | câu đố |
| tiếng Việt | vie-000 | trò chơi |
| Bahasa Malaysia | zsm-000 | teka-teki |