When one does not know what it is, then it is something; but when one knows what it is, then it is nothing. Riddle answer
Answer: Riddle
Explanation: #Riddle_answer: When one does not know what is that, then it is something; but when one knows what it is, then it is nothing. what is that? Riddle answer ... Also read : How many chickens and cows puzzle answer Knowledge increases by sharing :)