Simple Question
The teacher asked the class a question: A boy was standing facing the north, and another was standing facing the south. How many mirrors are needed for them to be able to see each other?

All the students were puzzled by this weird question.
Some of them scribbled lines and lines of equations on the paper, while others were using mirrors to try out themselves. They gave answers like "infinte", "its impossible" and "i don't know" But the teacher told them all of them were right.

Teacher: Shall I tell you the answer?

All the students were very eager to find out the solution to this mystery, and noded their heads violently.

Teacher: The answer is: none.

Every one of the students were puzzled by the answer that the teacher gave, seeing that they still could not get it,

Teacher: If they are facing each other, of course they would not need any mirrors to see each other. I did say that the 2 boys were facing North and South respectively, but when did i ever say that they were facing their backs to each other?

Sometimes, the answer to the question is very simple,
but we tend to think too much into it and just burrow
ourselves in finding the difficult solution. Isn't this just like life? Many things are extremely simple,
but we just assume that all things are always hard
and ignore the presence of the simple answer.