Question about selling stock.

[CaucasianAsian29]

I don't understand how stock is sold exactly, and am pretty embarrassed to ask this stuff, thanks in advance.

Assume your using Etrade or something like it
*If you have X number of shares of a stock, does one person have to purchase all of those from you?

*If you wanna sell of your stock are you sometimes going to be left w/ like 14 left over shares each worth $10?

*If you only buy a small amount of stock, like under $1500, will people pass up on it because it's not the full amount they want?