On Friday the last lesson is a game. The teacher writes one word on a small paper and puts it in her pocket.
"You have twenty questions," she says. "The rules are simple: I answer only with short sentences."
"Where do we find it?" Dilnoza asks. "In every house."
"How much does it cost?" "Almost nothing."
"How often do people use it?" "Every evening."
"Who uses it?" "Everybody in the room."
"How many parts does it have?" "Two."
"When do we use it?" "When the sun goes down."
"Why do we use it?" "Because the room is dark."
"How does it work?" "With electricity."
Nineteen questions and no answer. The class is quiet. Sherbek guesses a lamp, a phone, a television — all wrong.
Then Afsona asks the twentieth question, and it is the best one: "Where in the room is it?"
The teacher looks at the wall next to the door.
"A light switch," Afsona says. "Two parts: on and off."