A boy and his cow arrived at a round lake.

logic/cow.on.island New, unsolved

New entry, edited from material collected for the archive and not yet in a released version.

Problem

A boy and his cow arrived at a round lake.  In the center of the lake is
a round island, and in the center of the island is a very tall tree.
The boy tied his cow to the tree on the island without ever getting
wet.  How?

Show solution

No solution was found in the collected postings.

[ Editor: posed by Mintardjo W. <wangsawm@CSOS.ORST.EDU> in the thread on
the army and horseman puzzle (see analysis/dog). ]