Vocabulary consisting only from characters you are able to read
八日
youka
eight days, the eighth (day of the month)jlpt5, toki
二十日
hatsuka
twenty days, twentieth day of the monthjlpt5, toki
三日
mikka
three days, the third day of the monthjlpt5, toki
七日
nanoka
seven days, the seventh day of the monthjlpt5, toki