August Challenge 2015
Gravity Guy, Cooking Machine, Aditi and Magic Trick, Way Out
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix, Bank robbery
October Challenge 2015
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
February Challenge 2016
Chef-Detective, Chef and Strange Operations, Devu and a light discussion
March Challenge 2016
Palindromic substrings, maximize the sum
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
February Lunchtime 2016
Chef and Socks, Chef and Tic-Tac-Toe
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
India