"Who indeed are you?" is a literal English equivalent of the French phrase Qui bien êtes vous? The pronunciation of the interrogative in the second person formal singular "you"/informal plural "you all" will be "kee bya et voo" in French.
Amusez-vous bien, ma petite! in French means "Have fun, my little one!" in English.
did you sleep well
"Good! And how are you?" in English is Bien! Et ça va?informally or Bien! Et Comment allez-vous? formally in French.
"Get better!" in English is Soigne-toi bien! to someone the same age or younger and Soignez-vous bien! to someone older in French.
Avez-vous...? in French is "Do you have... ?" in English.
do you speak French well is translated "parlez-vous bien français / est-ce que vous parlez bien français" in French
Vous allez! in French is "You go!" in English.
Allez-vous...? in French is "Are you going...?" in English.
Qui, vous? in French means "Who, you?" in English.
Reviendrez-vous? in French means "Will you return?" in English.
Que faites-vous? in French is "What do you do?" in English.
Parlez-vous français? in French is "Do you speak French?" in English.