.
In this post, 2 (two, TWO) things are unclear to me.
1. How the road relates to the pond (same as Alan asked you),
and
2. These words " . . . they will meet after 16 minutes" relate/refer to which time moment ?
in other words, 16 minutes after WHICH event ?
As the problem is formulated, it is absolutely clear that this problem goes not from a textbook -- it is
created by somebody, who has no experience in creating Math problem.
To this person I want to say: Math problem is not a puzzle. Math problem is a piece of art.