By Telegraph Media Group
By Ken Russell, Philip J. Carter
By Tim Moorey
By The Puzzle Society
By The Times Mind Games
By Howard-Williams, Jeremy
By Compiled By Barbour Staff
By Igloo Books
By Soanes, Catherine
By Massingham, H.W., etc.
By Fritz Spiegl
By The Times Mind Games, .
By Collins Dictionaries, Forsyth
By Bradford, Anne R.
By Bounty
By THE TELEGRAPH
By Campbell, T.
By Fox, Hayden
By Prebble, Roger, Griffiths, Mick
By European Language Institute
By Moore, Gareth
By Daily Mail
By Collins Dictionaries