......little Johny didn't go
to school, his father asked him, "My son, why didn't you go to school today??
Johny replied, "you see what dad, my teachers at school is not sure of what he is teaching"his father was shocked and asked, "why do you say so?"
Johny replied, "you see what, yesterday he
said 4+3=7,today he said 6+1=7, and i think tomorrow he might say 7+0=7,don't you think that he has a mental problem?"
# dad fainted#
Wake up soon dad