Place 7 sticks in a circle as shown with all heads pointing to the outside. The challenge is to turn around 6 of the 7 sticks with 6 heads pointing to the inside by following certain rules. The rules for turning a stick are:
1. Always start with a stick with head pointing to the outside.
2. You may go clockwise or anti-clockwise.
3. Start counting at a stick e.g. stick 3, skip stick 4 and turn around stick 5 so that the head now points to the inside.
4. Continue doing this until all the sticks, with the exception of one, point to the inside.