The Dull Boy

Once upon a time in a remote town of Germany, there lived a boy, age 12. He was medium-built and fair-skinned.  Being an introvert, he preferred to remain all alone, most of the time. Even in his school, he was alone most of the time, with no friends around. He was weak in his studies, especially in Mathematics. His mathematics teacher once decided to make him learn a lesson in arithmetic. He tried really hard and remained patient for 2 weeks to teach him some basics of arithmetic and algebra.  But despite his continuous efforts, the teacher discovered that the boy had learnt nothing... absolutely nothing. So the teacher got irritated. He decided to punish the boy for not working hard enough to learn his mathematics, by making him stand up on the bench.  The boy reluctantly agreed and stood up on the bench. All his classmates gazed at him and started laughing at him.  After 15 minutes, he got upset and asked the teacher if he could sit down on the bench, promising th...