All open tasks that are due today:

not done
due today

All open tasks that are due within the next two weeks, but are not overdue (due today or later):

not done
due after yesterday
due before in two weeks

All open tasks that are due within the next two weeks, and either have the #inbox tag, or are in an Inbox note:

not done
(due after yesterday) AND (due before in two weeks)
(tags include #inbox) OR (path includes Inbox)

All open tasks due during the next calendar month but not scheduled:

not done
due next month
not scheduled

All done tasks that are anywhere in the vault under a tasks heading (e.g. ## Tasks):

done
heading includes tasks

All tasks done this calendar month but that were due or scheduled on the month before:

(due last month) OR (scheduled last month)
done this month

Show all tasks that aren’t done, are due on the 9th of April 2021, and where the path includes GitHub:

not done
due on 2021-04-09
path includes GitHub

Show all open tasks that are due in a two week range inclusively, hide the due date and edit button:

not done
due 2021-05-01 2021-05-14
hide due date
hide edit button

Show all tasks that were done before the 1st of December 2020:

done before 2020-12-01

Show all tasks scheduled for this quarter and that have a tag:

scheduled this quarter
has tags

Show one task that is due on the 5th of May and includes #prio1 in its description:

not done
due on 2021-05-05
description includes #prio1
limit to 1 tasks

All open tasks that are due today or earlier, sorted by due date, then grouped together by the folder containing the task:

not done
due before tomorrow
sort by due
group by folder

All open tasks that begin with a time stamp in HH:mm format, followed by any white space character:

not done
description regex matches /^[012][0-9]:[0-5][0-9]\s/

***

due date is before 2022-10-22 (Saturday 22nd October 2022)
is recurring

scheduled date is after 2020-10-21 OR no start date