Depending on the game, the answers are as follows:
The Diabolical Box
Left foot forward one, right foot forward one, left foot forward three, right foot forward three, left foot forward three, right foot forward one, left foot forward one, right foot forward three, left foot forward one.
The Unwound Future
The number is 74.
The Last Specter
She should follow either E F A or F E A
The answer to it is )7876556
The answer to it is )7876556
Sorry, Cannot find a Puzzle 255 in Professor Layton and the spectre.
Puzzle No 1: A Secret Message, Professor Layton & the Spectre's Call. Answer = HELPSOS
There are only 135 puzzles in Professor Layton and the Curious Village.
Puzzle No 18: Professor Layton & the Spectre's Call. Please see the related link below for the location of this puzzle.
Puzzle No 101: Shy Guys and Gals. Professor Layton and the Unfound Future You need to have solved puzzle No 100, Leave the toy shop and walk down to talk to Misha. Please see the Related link below for a walkthrough of the puzzle.
Puzzle list for Professor Layton's Pandora's Box. Please see the Related link below for a walkthrough of Puzzle list.
Professor Layton weekly puzzle No 8. Please see the related link below for a walkthrough of the puzzle.
Puzzle Battle 3: Professor Layton and the Unwound Future. Please see the Related link below for a walkthrough of the puzzle.
For a walkthrough of Professor Layton and the Diabolical Box, click the related link below.
Professor Layton and the Curious Village, It would be helpful if you could also give the puzzle number.