No.5 Sweet Amber
Bring Grimbooze Thunderbrew a bundle of Charred Oak. This is located in Searing Gorge. Go through the tunnel in Loch Modan if you can and follow the path. You should be able to find it near the pit. The WOW money is good too, 6 WOW gold.
Hidden index: 80%
No.4 Cortello's Riddle
Solve the riddle! The soggy parchment contains the next clue... Still nicely hidden.
You are sitting on top of a barrel on the bottom floor of the east ship. It doesn't have a yellow! Over it. When you hover over it you will see that gear thing you see for a right-click "use" command. You will gain some World of Warcraft money as rewards.
There are three possible places the scroll can be found:
On barrels on the bottom floor of the boat
On the floor near the box of crates on the bottom floor of the boat
Captain's Room on the 1st floor.
Hidden index: 85%
NO.3 The Essence of Eranikus
Bring the Oathstone of Ysera's Dragon flight and the Chained Essence of Eranikus to Itharius in the Swamp of Sorrows. It is there that you will make your choice to aid Ysera's Dragonflight or not.
Hidden index: 92%
Quest: It's a Secret to Everybody
Take Linken's Sword to Donova Snowden in Winterspring. Donova Snowden can be found near the entrance to Winterspring through Timbermaw Hold (just south of the road).
Hidden index: 95%
NO.1 CLUCK!
CLUCK is a hidden quest in the game - mainly for alliance.
Go to westfall, Saldean's Farm and create a macro with the line /chicken. Target one of the chickens at Saldean's Farm and spam the macro (this might take a while, be patient). Eventually, the chicken will become green-labeled, right click the chicken (I presume you're not level 1) and you will receive a quest - this quest. Accept the quest, go to "Farmer Saldean" and buy one piece of Special Chicken Feed. Return to the chicken and give him the Special Chicken Feed - he will give you a "Chicken Egg" (you have to pick it up yourself) - this egg is a pet.
This quest is A H but if you want to cost some WOW gold and buy it the special chicken feed is only buyable for the Alliance (you might be able to get it by the cross-faction AH).
Hidden index: 98%