The number that is not like the others is 16. All of the other numbers are divisible by 3. (21/3 = 7, 15/3 = 5, 6/3 = 2, 27/3 = 9)
Las válvulas distribuidoras pueden clasificarse en dos grupos means "The distributor valves can be classified into two groups"
El gorro parquet yo creo que eso es sweater en ingles, ¿verda?
