Here are the entries for the crack the code contest
1..
I chose 6.0.0 because that number is contained in many puzzles ,, 2 also there are two numbers, one number in the first box and one in the third box ,, but if you see the number 0 contained in the third and fifth boxes , the number 2 has been proven wrong, because the third box also contained the number 6 in the first and second boxes, and the first and second box is only one right number ,,,
Ok that's it, hopefully my answer is correct
Thanks
My answer is 0.4.2
Box 4 obviously nullifies 7,3,8, so from box 5: 0 is a part of the code (position yet to pointed out)
Box 3: two numbers correct but wrongly placed. With 0 being a certain digit in the code, wrongly placed in box 5 and 3,it therefore comes as the first digit
Box 1: 6 can't be the correct and well placed digit because 0 already has that position ; 8 is nullified from box 4,so 2 is the correct and well placed digit.
So far, the code is 0 _ 2
Finally,from Box 1,since only one digit (2) is correct but wrongly placed, others have been nullified. Also, Box 1 says one number is correct and well placed and 6 is the first digit. Box 2 says one number is correct but wrongly placed and 6 is the first digit again. So because 6 can't have both properties at the same time it's nullified.
Looking at 1... The code can't be 0.1.2 because Box 2 says there is one correct but wrongly placed number so 1 is nullified.
So I'm left with 4 which, from Box 2 is correct but wrongly placed as third digit.
Final answer: 0.4.2
4.. sanoza
0.6.2
Box 1 and Box 2: We can't find any answer yet
Box 3: 6 and 2 are correct numbers, 2 was meant in the box 1 and 6 in the Box 2. 2 is the third key and 6 can be the 1st or 2nd one. we'll find out later.
Box 5: 0 is a correct number because 7 and 8 are rejected by box 4.
6 is wrong placed in box 2 and box 3 so the right place for it is in the middle and finally the order is clear now 0.6.2
WINNER IS 
Proof of PRIZE
Thanks to all those who participated lets KEEP STEEMING more contest coming