One day, there was this boy,
who worked so hard on the night before, that he felt sooo sleepy on that day.
So he attended his class, in a very drowsy state.
While his lecturer was teaching, he fell asleep.
Then when he woke up, the class had finished.
Panicly, he looked around and saw a few instructions on the board.
So he wrote down the instructions which he assumed must be an assignment from his lecturer.
Then he tried to solve the assignment so hard and managed to solve only one.
He decided to meet his lecturer, so he went and asked him for tips in solving the other questions.
Then the lecturer was shocked. He said that, I didnt assign the class any assignment. Those questions are amongs the world's unsolved questions.