Grouping of people based on days of the week
medium
1 of 5 Lessons
Tabulating data for three different departments
medium
2 of 5 Lessons
Scheduling exams and lectures across multiple months
medium
3 of 5 Lessons
Month and Date based puzzles with year gaps
medium
4 of 5 Lessons
Logic behind selection with multiple conditions
medium
5 of 5 Lessons