SOLUTION TO PUZZLE # 1:

 

Here is the best answer, in eleven manipulations:—

Treasure down.

Boy down—treasure up.

Youth down—boy up.

Treasure down.

Man down—youth and treasure up.

Treasure down.

Boy down—treasure up.

Treasure down.

Youth down—boy up.

Boy down—treasure up.

Treasure down.

 

 

SOLUTION TO PUZZLE # 2:

 

                NORTH POLE (see figure)