"I always use query and almost never PHPmyadmin functions for such things.. much faster..

"
Since phpMyAdmin is a program, unless you are "comparing apples and oranges" -- then query is
also a program.
the word "query" can have other meanings -- a word's meaning determined not only by the series of letters it is made up of, but also by the context it is used in. Therefore, the word query can refer to both what you query a database with, and an entirely unrelated progam. Given the sentence that you used the word "query" in, you implied that there is a program called query, as well as a query that is something you do to a database.
That is why I said I was unfamiliar with the program called query.
in phpMyAdmin you go to the page where you can see all the databases.. then you simply pick one of them and delete..
how hard can that be?!
It appears to me to be quite impossible.
In this instance, what do you mean by "pick" ? Highlight the database name with the mouse? What do you mean by "delete." Press the delete button on your keyboard? That won't work to delete a database. What you have to do, to delete a database, is simply not evident from "the page where you can see all the databases" or from your explanation.
After you go to the "Welcome to phpMyAdmin" screen, you click on a link that says "databases." This takes you to a screen with the heading "databases," and all the databases are listed. I assume this is the page you mean when you say "the page where you can see all the databases."
At the top of this screen it says "local host." Below that there are 3 tabs: databases, processes, and export. Below that is the "databases" heading I mentioned above. And below that is a table containing a list of all your databases. You can click on the table heading ("database") to order your data bases ascending or descending. Beyond what I have already described, there is nothing on this screen that suggests there is some way to delete a database using the list of databases. Left-clicking on a database sends you to a page containing a list of table in the database. Right-clicking on a database name does not produce a menu choice for deleting it.
The question was how do you delete a database. Saying that, to delete it, you pick it and "delete" it -- does not answer the question. The question was
how do you delete it.