Five friends lived in a room

Five friends lived in a room, namely

Mad, brain, fool, somebody & nobody.

0ne day,
Somebody killed nobody.
That time, brain was in bath room.
Mad called police.

Mad: is it police station?

Police: yes, what is the matter?

Mad: somebody killed nobody

Police: what are you mad?

Mad: yes, i am mad

Police: don’t you have brain

Mad: brain is in bathroom

Mad: no, i’m not fool. fool is reading this message