Streaming queries return unlimited number of rows in CSV format and are cancelled after 420 seconds.
Browser queries return maximum of 10000 rows in HTML format and are cancelled after 30 seconds.

Maximum number of rows to return to the query form:  

Demo queries: click a button and the query will show in the query window.
Holding the mouse over the button will give a short explanation of the goal of the query.
These queries are described in detail on this page.

Hutt queries