Help with sorting (ie. ORDER BY expression)

Hello,
I am running postgres-7.3. I have a query like this:

SELECT question_id, question_text
FROM quiz_table
WHERE question_id IN (2,10,3,6,4,5);

But I want the output to be sorted in the way I give the question_id,
something like:

SELECT question_id, question_text
FROM quiz_table
WHERE question_id IN (2,10,3,6,4,5)
ORDER BY question_id (2,10,3,6,4,5)

Is there any way I can do that, so that the output of the query is

question_id, text
2 ...
10
3
6
4
5

Thanks for any help.

RDB

--
Reuben D. Budiardja
Dept. Physics and Astronomy
University of Tennesse, Knoxville, TN