"Smart answers"

1.Teacher;
are u chewing gum?
Student;
No , i am john smith ........ :p

2.Husband;
we are having mother for dinner tonight.
Wife; Make sure she is well cooked....... ;D

3.Father;
shameful resuts !
Do u always get such low marks ?
Son;
No,Only when i take exams....B-)

4.Boy;
i have changed my mind.
Girl;
Thanks god !!!
Does the new one works ??? :o