A fruit to eat...
	A house to live in...
	Puzzler...
	The Neighbor...

Solve all the puzzles from the third category. (the puzzles with the neighbors, houses and fruits)

Solve all the puzzles from the second category. (the puzzles with neighbors and houses)

Solve at least 40 puzzles.

Solve all the puzzles from the first category. (the puzzles with the neighbors)