Weighing 1:
1. Divide the balls into three groups: Group A (3 balls), Group B (3 balls), and Group C (2 balls).
2. Place Group A on one side of the scale and Group B on the other.
Possible Outcomes:
* Scenario 1: The scale balances. This means the heaviest ball is in Group C (the two balls not weighed).
* Scenario 2: The scale tips. The heaviest ball is in the group that weighs more.
Weighing 2:
* If Scenario 1: Take the two balls from Group C and weigh them. The heavier one is the heaviest ball.
* If Scenario 2: Take the three balls from the heavier group (from the first weighing) and place any two on the scale.
* If they balance, the heaviest ball is the one you didn't weigh.
* If they tip, the heavier ball is the heaviest.
Let me know if you'd like to try another puzzle!