Brain Teasers
The Teacher and his Students
A teacher and his students stand in an empty room. The room has no windows, no chalk, and no chalkboard. The room is completely barren except for 10 students and one teacher. The students ask the teacher if they can go eat lunch, and the teacher says, "That won`t be necessary, it is already here." How did they get their lunch?
Answer
The teacher is a mathematics teacher. He makes each student pluck a hair out of their head. He then breaks off the root of each hair follicle and places all ten roots in the shape of a square. The square root of 10 is an old approximation of pi. The students divide the pie and eat lunch.Hide Answer Show Answer
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