Night time
Ankit was in India, away from Papa Mummy, for the summer vacation.
One night he was having trouble as Nani (Mummy's Mummy) tried to put him to sleep.
Nani explains to him: "Ankit, everybody is sleeping. Now you go to sleep too."
Ankit: Everybody??
Nani: Yes Ankit, it is night, the whole world is sleeping. You should go to sleep as well.
Ankit: No! The whole world is not sleeping. The whole world is not having a night. The world is round, and when we are having a night, Papa Mummy are having a day because they are in America and America is on the other side of the world. So, not everybody is sleeping.
Nani doesn't know what to say.