what does 500s mean when you talk about books and shelf ? The sentence confused me is: She took the first few books, headed for the 500s, and put two whale books where they were supposed to go. what does 500s mean here?

riffs, runs and embellishments What does " runs " mean when you talk about singing a song?

Who is Katina D. ? Is there a Katina D. singer in the US? Wash the World Away is one of her song. I saw her in a book, but could not get any information on internet. Dose Katina D. exsits? what is her full name? could you please share me some webpages of her? Thanks a lot.

How to say "happiness" in your mother language How to say "happiness" in your mother language? In Chinese, it's 幸福. Thank you.

A long sentence, help! What if the truth screams as loudly as a male barn owl crying for a mate, and we miss it because we have not allowed ourselves to listen to the channel it's on -- or we've tuned it out? I don't understand it, could you please help me?OH, thanks! "scream" is a verb here, but I thought it was a noun. haha. that's the key. Thank you, steven!

What is casserole brigade? the context is: After grandma's death, the "casserole brigade" started appearing at his doorstep. What is casserole brigade?Thanks, all of you! The truth is these women came to grandpa to see if he would marry them.

About "Flag tag" In this sentence -- " I had somehow bested her at a rowdy game of flag tag on horseback at a summer camp." What is the game "Flag tag" supposed like?

Do anybody speak Hebrew? I have questions about bar mitzvah On the bar mitzvah, the prayer which the boy says is: Baruch et Adonai ba’mevorach Baruch Adonai ha’mevorach L’oiam va’ed. Baruchata Adonai, noteyn ha’torah L’chayim! what do these mean?

what is "study question data sheet" and "ditto"? 1."Mr. P believed that no class was worth anything without a Study Question Data Sheet. He dittoed these off like a major publisher. His hands were always blue form the ink, mostly because he hauled the dittos out from the machine while they were still wet from the alcohol--the smell of which gave the room a tang." what is "study question data sheet" and "ditto" here? 2."Mrs. B asked me to do chores for her. but then she said something that made the world spin backward.'Of we both finish in time, you may have one of the cream puffs.'" what does "made the world spin backward" mean? 3."Everyboby who ate cream puffs cough to death. At this, Mrs. C had tearfully insisted that the cream puffs were really not that bad after all, and she had put a whole one into her mouth, chewed, and swallowed. The doctor said that the spell had come on when she refused to let herself cough even once." what does "the spell had come on " mean?