Below are past exams with the answer for each question. Have fun!
- 2008 contest 2008 answers
- Question 31 was thrown out
- 2007 contest 2007 answers
- Question 13 was thrown out
- 2006 contest 2006 answers
- 2005 contest 2005 answers
- 2004 contest 2004 answers
- 2003 contest 2003 answers
- 2002 contest 2002 answers
- 2001 contest 2001 answers
- 2000 contest 2000 answers