Answer = 042
Explanation
First, I created three empty boxes to represent the three-digit code. The first hint states that one number is correct and well placed. The second hint states that one number is correct but wrongly placed. By comparing the first two hints, we can conclude that 6 is not in the code. The third hint states that two numbers are correct but wrongly placed, which means that 0 and 2 are in the code but in the wrong positions. The fourth hint states that nothing is correct, confirming that 8 is not in the code. The fifth hint states that one number is correct but wrongly placed, meaning 0 is in the code but not in the second or third position. Since 0 is in the code but wrongly placed in previous hints, it must be in the first position. From the first hint, 2 is correctly placed, so it must be in the third position. From the second hint, one number is correct but wrongly placed. That number must be 4, meaning 4 belongs in the second position. Thus, the correct answer is 042.