You can get hints to the solution by pressing back, selection challenges and press X with the challenge you want highlighted. The rune read ability from the grey bearded man with the can on a stick will give other clues to the solutions.
Get In the House
This area is to the left from the big statues after coming up from where you start to game you need to get to the other side of a strip of runes which raises to the house out of reach when you step on it.
1. Accurate Pressure
Use on of the hobos with the grey beard and the can on stick to read the runes on the strip of runs in front of the house.
Unstack a doll on top of the three runes that glow.
2. Smoking out the Bandits
Stack into Cornelius Caboose in the corner before the house. Use his smoke out ability to flush out the raccoon from the cave behind him. Stack into the Racoon and go through the dark cave around the strip of runes.
3. Fishy Swallow
Use a doll with a bindle stick (a stick with a sack tied on the end) to bind bash the large doll by the empty fish cans. This knocks a fish "Gumps o' the Sea" out of him. Stack into Gumps an go under the seagull. Use Fish out of water to get the seagull to fly down. Stack into the sea gull and fly to nest. walk across the path and drop down on the other side of the rune strip.
This area is to the right of the big statue in the hub area after coming up the stair from the start of the game. You need to open the can in the centre of this area.
1. Gone Fishin'
Go through the hole in to cans in the corner and stack into the seagull. Fly to Nest. Cross the bridge to what look like the cloth back on a hand mirror. Fly to nest again. Stack into the hold on the fish hook and lower the anchor.
2. Lance a Lot
Stack in one of the large dolls with the pallet on his head. Carry Small Load on a small doll. Put it down on the counter beside the suit of armor and stack into it. Drop down my the armor and stack into the armor. Use the joust ability to open the gate and again on the target by the can.
3. The Can be Only One
Use bucky Bedroll by the entrance to this area to put a bucket on the head of Tristam Tugboy whos walking about the area. Stack into Tristam and talk to the woman in red to become Sir Tristam Tugboy. Use Grip of the Mighty on the handle of the can.
Get Past the Ghouls
This is the area through the lower tunnle behind the big statue in the hub area. There are two areas of ghould to get through here, the idea is to get by the ghouls and stack into the holder by the gate to open it.
I've observed that if you use different ways of getting by the ghouls only the second areas ways will be the one that counts. Use the same technique in both areas to be safe.
1. Head Cheese
Use Stilton Red-Sticks, the guy standing to the right in this area with the cheese on his hat. to toss cheese to repel the ghouls.
2. Meat Heat
Talk to the vendow at Wet Aged Steaks in the hub area. You can just walk by the ghouls.
3. Jailed Bait
Use Betty Bufflehead, the woman to the left with the cage on her head, to put a cage on a small doll. Use the guy with the pallet head to pick on the cage doll and drop it in with the Ghouls to distract them.
4. The artful Dodger
Just run by the ghouls without any special abilities.
5. Ghoul Lash
Use either the Suit of Armor's Joust or Deep Sea Hans' Fish Hook to break the Ghouls. Both of these dolls are in the excallican area. You either need to release the armor from it encloser by dropping a carried doll on the counter with a pallet head doll or fish Hans out of the sea with the boy with the fishing rod from the docks near the armor.
6. Bake n Break
First use Floyd Fire-Breather Fire Breath ability the unstack to Pliny Pan-Pounder and use his Pan Handle to break the Ghouls. After you finish the game both of these dolls area standing by the large statue.