Doraemon and Hello Kitty

Question: When Doraemon calls out to Hello Kitty, "Hello!" Why didn't Hello Kitty respond?

Answer: Because she has no mouth!

Question: When Hello Kitty calls out Doraemon "Hello", why didn't he respond?

Answer: Because Doraemon has no ears!

Okay, enough of lame jokes, let this be just a small little break for my students who are studying hard for exams (and still find time to stumble upon this blog)... All the best for your exams. Gambette!