February 2012 Challenge
Word Couting, Count of Maximum, Lucky Long
March 2012 Challenge
Free Shuttle Service, Home Delivery, Spoon in Matrix
April Challenge 2012
Similar Graphs, Greatest Dumpling Fight, Stacking Pancakes, Double Strings, Fit to Play, Parallel Computing
May Challenge 2012
Killing Gs, Jewels and Stones, Lucky lucky number, Remember the recipe, A Home for Chef
June Challenge 2012
Little Elephant and Candies, Doom Bakes Cakes, Arranging Cup-cakes
July Challenge 2012
Chef's Dream, My Fair Coins, Gift Rift
