Mullah Nasruddin had lost his ring, so he set out to search for it under the street light.

Others came to help him search.

Finally when asked if he was certain he had dropped it in this spot, he said,
"No, I lost it there," and pointed to his house.

The others asked incredulously:
"Then why are you looking for it here?"

Mullah Nasruddin said, while trying to look clever:
"Because it is dark where I lost it, and it is light out here!"