There are four cherries on the table. Your sister has eaten one and how many are left.

A math teacher called a student who was paying particular attention to the class to come to the blackboard.

"Gordon, think about it. Four cherries are placed on the table. Your sister eats one of them. How many are left on the table?"

"How many sisters are there?" ? Sir."

"Listen! There are four cherries on the table..."

"This is impossible, sir! There are no cherries, it's winter."

"Gordon! Let's say four cherries are on the table and your sister comes..."

"Which one?"

"Which one? Of course it's your sister!"

"Ah, I have two sisters, Monica and Inge."

"It's the same ! Attention, one sister took a cherry..."

"Monica and Inger will not stop at that cherry, they always take everything."

"But, Gordon, your father will only let her take one cherry!"

"That's impossible, sir."

"Why?"< /p>

"Dad is on a business trip and won't be home until two weeks later."

"Well, pay attention! I'm going through the topic now. If you interrupt, you should do it yourself. Standing on the seat. Well, there are three, no, four cherries on the table. Your sister took one cherry from it. How many are left on the table?"

"There are no more. "

"What? How could you type such an answer?"

"Because I ate the remaining cherries - I like to eat cherries the most."