Exercises
Return box for exercise 5. Closes Wed May 25 at midnight.
Return box for exercise 4. Closes Wed May 18 at midnight.
Return box for exercise 3. Closes May 11, 24:00 Finnish time.
Return box for exercise 2. Closes Friday May 6, 16:00 Finnish time.
Return box for exercise 1. Closes May 3, 12:00 Finnish time.