Your question is Measuring 4 Liters with Two Unmarked Buckets. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You have two buckets of 3L and 5L capacity with no markings and a lake nearby; how would you measure exactly 4L of water?
