I wanted to know too. And as I had nothing better to do, I found this and pasted it here. The whole web page can be viewed with the link below.
Disney's Missing Quote Challenge - Adventureland
Takes place several times a week - check the Guide Map for exact dates and times.
This is a trivia quest - You are given a list of about 18 questions.
Some of these you will know, others you will have to visit the attractions to get the answers. Some of the attractions in the past have been: Swiss Family Treehouse, Hall of Presidents, the Liberty Belle Riverboat, Tiki Room, and the WDW Railroad.
You then return to Adventureland with the answers in the afternoon, at about 2:30 pm.
Prizes for this can be: Front of the Line passes (3 for each of you - for everyone who participates); winners also get something else like their choice of more Front of the Line passes, or VIP treatment for the parade (reserved curbside seating, free popcorn, and free soda).
http://www.wdwplanner.com/Park Extras.htm