Vocabulary consisting only from characters you are able to read
五日
icuka
five days, the fifth day (of the month)jlpt5, toki
二人
futari
two persons, two people, pair, couplejlpt5
十日
tooka
ten days, the tenth day of the monthjlpt5, toki
二十日
hacuka
twenty days, twentieth day of the monthjlpt5, toki