What is the answer to puzzle 12 in Professor Layton and the Curious Village?

Answer 1

Puzzle No 13: Sinking Ship, IN the Manor Border, Tap the boat to solve a puzzle.

Answer = There is one man constantly manning the boat so 13 people can be saved before the ship sinks.

The solution is that 13 will live since there has to be one person on at all times while three trips are made during the time allowed.
Puzzle No 13: Sinking Ship, In the Manor Border, Tap the boat to solve a puzzle

This is also know as the sinking ship puzzle. The location is the Manor Border. Talk to the character Mathew then walk down to the stream and talk to Ramon. The solution allows the boat to make three trips during the time with one person remaining aboard. 13 people will live This puzzle starts in the Manor with you talking to the character Dahlia or Mathew. Dahlia loses her cat Claudia when a loud noise rocks Reinhold Manor and scares off the cat. You walk down the stairs and talk to Mathew. 13 people will live to see dry land. x x
Puzzle 13, Sinking Ship, Curious Village.

Answer = 13 people can be saved.

Answer 2

This puzzle is also known as Which Chair. The location is the General Store. Examine the Chairs. The answer of E it's the only stackabkle chair to this multiple choice puzzle is worth 30 Picarats and a painting Scrap for the Art Lover's House. the answer is E

Answer 3

As pointed out in the third hint, you need a chair that makes storage easy and there's clearly only one chair that can be stacked easily

The related link shows a picture of the answer and this popular walkthrough can be used to find every solution (and other information) when you get stuck

Answer 4

Puzzle No 11: Arc and Line. Tap on Simon in the Manor Parlor, to be challenged with this puzzle.

Answer = 10 inches.

and the character is Simon. It is a write answer type puzzle and the answer which is 10 is worth 20 picarats.

Line AC is the same as line BD which is a radius. 10.

See the Related link below for puzzle No 11, Arc and Line.
Puzzle No 11: Arc and Line, Tap on Simon in the Manor Parlor to be challenged for a puzzle.

Please see the related link below for a walkthrough of puzzle No 11.
Puzzle No 11, Arc and Line, Curious Village.

Answer, AC = 10 inches.

Answer 5

Puzzle No 12, Make a Rectangle, In the Manor Parlour/Night, speak with Gordon.

Please see the Related link below for a walkthough of puzzle No 12.