I'm pretty sure it means, "Girls are funny".
It means " the two girls who are "
The correct form of "ser" for "muchachas" is "son." For example, "Las muchachas son inteligentes" (The girls are intelligent).
Las muchachas indias (hindúes) son muy inteligentes.
las montanas son bellas
Son muy guapas chicas (son mwee gwap-ass chee-cass) or less formally Sois muy guapas chicas(Soy-is mwee gwap-ass chee-cas)
Son las diez en la Habana. It is 10 in Havana.
que las fecha
It means "the oranges are".
"Como son las chicas" means "what are the girls like" in Spanish.
"Son las dos" is Spanish for "It is two o'clock." It is a way to indicate the time on the clock when it is 2:00.
If it is speaking of the time then it means "it is". It depends on the context. In Spanish las is the plural of la (the) Example: the girl - la chica, the girls - las chicas. Time as per your watch - son las tres- it is three o'clock
"¿Qué color son las uvas?" means "What color are the grapes?" in Spanish.