TWENTY || In Twenty Languages

This post won't help a whole lot for spoken vocabulary, but you could at least be a polyglot online! {Where are my emojis . . . }

1. Dwadzieścia || Polish
2. عشرون || Arabic
3. Venti || Italian
4. Twintig || Dutch
5. Viginti || Latin
6. Dvadeset || Croatian
7. Douăzeci || Romanian
8. Fiche || Irish
9. Ishirini || Swahili
10. Kaksikymmentä || Finnish
11. E rua tekau || Maori
12. Tuttugu || Icelandic
13. Vingt || French
14. Amabili || Zulu
15. Zwanzig || German
16. двайсет || Bulgarian
17. Ugain || Welsh
18. είκοσι || Greek
19. Vinte || Portuguese
20. Tjugo || Swedish

According to this page, anyway.