The following questions contain a cryptic clue. The word to which the clue points can be found amongst the answer options given. In this case, the answer would be rpac, which unscrambled, gives carp . A car is a substitute for vehicle.
Dirt sounds like boy's name.
I don't know 3. Dirty person may be used for wiping up after a morning snack. I don't know 4. Forbid for casual greeting what is found in horse's mouth. I don't know 5.