Puzzles (The Critical Line) The Critical Line – Volume 26 by Dan Mayoh and Actuaries Institute Posted 6 December 2018
Puzzles (The Critical Line) The Critical Line – Volume 23 by Dan Mayoh and Actuaries Institute Posted 15 August 2018
Puzzles (The Critical Line) The Critical Line – Volume 17, Christmas Edition by Dan Mayoh Posted 14 December 2017