How can be cut out of a single piece of paper, and with one cut of the scissors, a perfect cross, and all the other forms as shown in the cuts?

31. ANOTHER CROSS PUZZLE.

With three pieces of cardboard of the shape and size of No. 1, and one each of No. 2 and 3, to form a cross.

32. THE FOUNTAIN PUZZLE.

A is a wall, B C D three houses, and E F G three fountains or canals.

It is required to bring the water from E to D, from G to B, and from F to C, without one crossing the other, or passing outside of the wall A.

33. THE PUZZLE OF THE STARS.