How do you solve puzzle 27 on Professor Layton and the Lost Future?

Answer 1

Puzzle No 23, The Secret Number,

Walk down the stairs, (must have talked to Dr Schrader after solving Puzzle No 21)

Collect 3 hint coins, Check out the Laytonmobile,

Answer = Secret number is No 47.

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Answer 2

Puzzle No 48, 1/1000

Go inside the university and speak to Rosetta, find three hint coins,

Answer= move one of the matches so it reads 10cm

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Answer 3

Puzzle No 27: A Game Of Cards.

Enter the Casino,

Answer = the cards the man with the Orange hat is holding is incorrect.

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Answer 4

Puzzle No 19: Checkerboard Bridge (US) Chequerboard Bridge (UK)

Go to the Gilded 7 Casino,

Tap on the Laytonmobile, walk through the door on the right,

Go up the stairs, tap the pillow on the bed for hint coins,

Leave the hospital and go into the underground station and tap on the vending machine

Take the subway to Flatstone Street station, Go up the stairs to the left and have a chat to Berta.

Answer = There are 15 different routes across the bridge

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Answer 5

Puzzle No 11: The Professor's Hat.

Leave Anita's place then speak to the next person you come across.

Look for 3 hint coins and chat to Hazel, walk through the door on the left,

Pick up three more hint coins, tap on the sun-flower, walk out of the abandoned shop,

(Must have spoken to Hazel) At the Old Bus Stop. find 3 more hint coins, Speak to Shipley,

Tap on the bus stop.

Please see the related link below for a walkthrough of this puzzle.