2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2006

  • Teaser 2310 / 31st December 2006

2001

  • Teaser 2000: 2000 down / 14th January 2001

2000

1999

1998

1997

1996

1995

1994

1993

1992

1991

1987

1983

1982

1981

  • Brain teaser 1000: One thousand down / 20th September 1981

1977

1975

1974

1971

1970

1962

1961

::