Vocabulary consisting only from characters you are able to read
八日
ようか
eight days, the eighth (day of the month)jlpt5, toki
五日
いつか
five days, the fifth day (of the month)jlpt5, toki
七日
なのか
seven days, the seventh day of the monthjlpt5, toki
三日
みっか
three days, the third day of the monthjlpt5, toki