Mental people are given a test to prove they are getting normal, so their teacher draws a door on the wall and orders them to go and open that.. They start fighting but one remains sitting and the teacher goes to him and asks why he didn't join others people and he smiled and says "let them fight - But I have the key of that door"
There were a test between three friends men on a hill with their watches.
The first friend threw his watch down the hill and it broke.
The second friend threw his watch down the hill and it broke.
The third friend threw his watch down the hill, walked all the way to the bottom, and
The other two men were confused and asked the third one - how he did it.
The third one replied, "So simple, my watch is 7 minutes slow!"