Your sister's son is your nephew. You are his aunt (if you are a woman) or his uncle (if you are a man).
YesThe son and his sister = 1 son, 1 sisterThe sons and their sister = many sons, 1 sisterThe son and his sisters = 1 son, many sistersThe sons and their sisters = many sons, many sistersThough in reality this is a strange way to say it. More normal would be "The sons and daughters".
You can say: "Son diez para las siete" or " Son las siete menos diez" which is another way to say it.
Son sus blusas (Apex)
et cetera is another way to say and so on
No, he has a son and another baby on the way.
Another way to say 'events' is 'functions'
Another way to say poop is "feces" or "stool."
Verbose is another way to say big words.
Another way to say horizontal is flat, even, or level.
The person in question is your son. Think about it this way: Who is "your father's son"? It's you, because you have no brothers or sisters. So, you just replace "your father's son" with "you", and the riddle now reads: "...that man's father is you." Simple.
Deoxyribonucleic Acid (Longer Way)
another way to say only is but what's more ,you will find or as well as.