#1

SELECT
	1 + 1;

#2

SELECT
	10 / 5, 2 * 4 ;

#3

SELECT
	trackid,
	name,
	composer,
	unitprice
FROM
	tracks;

#4

SELECT
	trackid,
	name,
	albumid,
	mediatypeid,
	genreid,
	composer,
	milliseconds,
	bytes,
	unitprice
FROM
	tracks;

#5

SELECT
	*
FROM
	tracks;

albums artists customers employees genres invoice_items invoices media_types playlist_track playlists tracks