August Challenge 2015
Cooking Machine, Aditi and Magic Trick, Gravity Guy
February Challenge 2016
Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective
April Challenge 2016
Chef And Coloring, Chef And Magical Path, Chef and Ballons, Help Watson Escape
August Challenge 2016
Chef and Circle Run, Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, Chef and calculation
India