A candidate brought a dice into the examination hall for MCQ.
Very soon the candidate finished his whole paper and slept on his table.
Half an hour later the candidate sat up and started tossing the
dice again. The superintendent felt curious and approached the candidate.
Superintendent : "Gentleman, why are you tossing the dice again since you've already finished all the questions earlier on? "
Candidate : "Sir, I have to double check my answers."