Nasruddin was famed for his wisdom, and admirers came from all over to ask him questions.
"O Nasruddin," said one of his admirers, "how many stars are there in the sky?"
"I don't know," Nasruddin admitted, "but that is a question which has greatly interested me for a long time. And I have, in fact, thought about counting the stars in order to satisfy my curiosity."
"Why don't you?" asked his admirer.
"Well, there are two problems," Nasruddin explained. "During the day, I'm too busy with other things, and at night it is too dark to make an accurate count."
Inspired by: Mulla's Donkey and Other Friends by Mehdi Nakosteen
Notes: This story is on p. 66 of the book.