In an Automobile Engineering Degree Final Exam it was asked ' Design a best, ideal vehicle of the world.'

On the answer sheet a guy drew a sketch of a Woman and captioned "THE SAFEST, MOST AUTO-LOGICAL, USER FRIENDLY VEHICLE OF THE WORLD."

The perplexed examiner sends the boy a note asking him to justify his answer.

The boy explains in this way-

It is SAFEST

Because it has 4 bumpers-
2 in front & 2 at the back.

It is AUTO-LOGICAL
Because
(a) It is SELF LUBRICANT when HOT.
(b) It auto changes its ENGINE OIL every month.

It is USER FRIENDLY
Because
Every PISTON fits .!!!!11