In this town, houses are built with one room for each person. There
are some families of seven people living in the town. In how many
different ways can they build their houses?
Swap the stars with the moons, using only knights' moves (as on a
chess board). What is the smallest number of moves possible?
As you come down the ladders of the Tall Tower you collect useful
spells. Which way should you go to collect the most spells?