Play it · Ages 8–9
The Two Jugs
No markings. Get it exact. Three challenges — each one changes what you have to do, not just how many of it there are. Nothing is timed and nothing is scored.
0 of 3 solved
Get exactly 4 cups using a 5-cup jug and a 3-cup jug.
You are allowed to pour water away. Most people never try it.
Four cups
0
Big jug · holds 50
Small jug · holds 3Ten minutes of stuck counts as the work.
Now do it away from the screen
The board is the warm-up. The year page has the same problem on paper, the hint ladder, the answer, the five-day week and three questions nobody can mark — which is where the twenty-five minutes actually go.