It means " and do not know how". :)
"Cuanto son catorce y quince" translates to "How much is fourteen and fifteen" in English. The question is asking for the sum of the two numbers, which is 29.
It means "Mommy and you don't know how to speak spanish".
It means: no, well you don't know spanish and I don't speak english
"¿Sabes hablar eapañol bien?" means "Do you know how to speak Spanish well?"
This phrase in Spanish translates to "and you know that I love you but." It typically implies that the speaker wants to express their love or affection for someone, but there may be complications or difficulties in the relationship.
Il y a means "there is / there are" in English.
y = and el = he
'y' in Spanish = 'and' in English
"Y cuatro" translates to "and four" in English.
And.
Direct translation meaning: you know that she is very very crazy and also I don't like you now.
"Y el tuyo" translates to "And yours" in English.