번호	제목
22806	Image is Everything
22807	Merging Maps
22808	Carl the Ant
22809	Suspense!
22810	When Can We Meet?
22811	Get Many Persimmon Trees
22812	The Secret Number
22813	Building a Space Station
22814	Square Carpets
22815	Exploring Caves
22816	Pile Up!
22817	Kanglish : Analysis on Artificial Language
22818	What is the Number in my Mind ?
22819	Enclosing Circles
22820	Get a Rectangular Field
22821	Multi-column List
22822	Jigsaw Puzzles for Computers
22823	Missing Numbers
22824	Nets of Dice
22825	Fermat's Last Theorem