Sir:" Samajh tujhe 10 laddu diye

Sir:" Samajh tujhe 10
laddu diye..
.
Student:" Mujhe.. ???
.
Sir:" Samajh na tere
baap ka kya jata hai...
Usme se 5 laddu maine
le liye to
tere pass kitne
bache..???
Student:" 20
Sir:" Kaise.. ??
Student:" Samajh na
tere baap ka kya jaata
hai...