Such inventive personality questions may not have a perfect answer. You may not be 100% right or wrong, but you can give your best shot. Learning or analyzing characteristics common vegetable holds and seeing which connects to yourself is better. Answering such questions wisely lets the interviewer picturize you as a creative, quick thinker. For example, you can say, "Carrots can describe me the best. I'm remarkably flexible and can fit into any atmosphere rapidly. So, I connect myself to carrots which can be found in diverse dishes from salads to sauces". You can pick other vegetables, too but ensure you have a prospective association.