August Challenge 2015
Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick
September Challenge 2015
Bank robbery, Lighthouses, Count Steps in Matrix, Chain of Doughnuts
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
September Lunchtime 2015
Sum of palindromic numbers
January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
March Challenge 2016
Chef And Special Dishes, maximize the sum, Palindromic substrings
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences
February Lunchtime 2016
Chef and Socks, Chef and Tic-Tac-Toe
October Cook-Off 2017
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries
India