By McMullen, Chris, Kivett, Carolyn
By Sun, The, The Sun Brain Teasers
By Smith, David, Millington
By Stockley, Corinne
By Wood, Denise, etc.
By Hutchinson, Mike
By Sukach, Jim
By Fox, Hayden
By Khan, Sarah
By The Times Mind Games
By The Times Mind Games, .
By Igloo Books Ltd
By Stroud, Jonathan, Holden, Caroline
By Mark Danna
By Collins
By Sarah Khan
By Eric Saunders
By Murphy, Jill, Griffiths, Rose, Unknown
By Market House Books Ltd
By Cookson, Paul, Paul Cookson
By Beal, George, Stevenson, P.
By Lorraine Childs, Lorraine Childs, Lorraine Childs
By Blair, Beth L.
By Theo Lewis, Matthew Scott
By Mavis, Cavendish