'des visiteurs' means 'visitors' in English.
The visitors
visiteurs
"des couteaux" means "knives" in English
avez-vous encore les noms des visiteurs
"des jumeaux" means 'twins' in English. (these are male twins; the feminine is 'des jumelles')
des chaussettes are 'socks' in French.
The English word for "Des Crayon" is "The Pencil".
markers
scissors
boots
"Eau des merveilles" would be translated "water from the marvels" in English.
"roi des ... (+ a plural noun)" means "king of ..." in French.