April Challenge 2020 Division 2
Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue, Strange Number
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
June Challenge 2020 Division 2
Chef and String, Chef and Price Control, Covid Sampling (Challenge), Chef and Icecream, The Tom and Jerry Game!, Even Matrix
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
December Challenge 2020 Division 2
Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
January Cook-Off 2021 Division 3
Distinct Pair Sums, Password
India