Water always finds away. From Cameroon , West Africa
For the benefit of flowers, we must water the thorns to. From Egypt, North Africa
I think in this proverb the writer was saying that water can not be created nor destroyed.
Two waterfalls do not hear each other. From Kenya, East Africa
I think the proverb was trying to mix it up saying that if two talk at the same time you can't hear each other. Like two waterfalls(The people) can't hear each other.
The horse that arrives early gets good drinking water. From South Africa
I think that this is basically a water and horse example of first come first serve.
Do not insult a crocodile while your feet are still in the water. From South Africa
It means don't insult someone in their own house our you will be in trouble.
Heaven is dark and yet out of it streams clear water. From Afghanistan, Southwest Asia
It represents a storm and the clear waters are rain and the storm clouds are heaven.
Water is a good insperation