Today's theme is "cognitive impairment." If young people show symptoms, there may be depression, schizophrenia, or some other condition below the surface...?!
You should know! Don't check with me!
يجدرُ بكِ أن تعلمي، لا تتأكّدي منِّي
Wie bitte?! Warum diese Frage?!
¡Tú debes saberlo!
¡Pues deberías saberlo!
 ¡No me lo preguntes!
Tu devrais le savoir !
Ne me demande pas !
Dovresti saperlo! 
Non chiedere a me!
Você deveria saber! Não me pergunte!