CHALLENGE 4

What does this series of numbers represent? -- - If you can solve this puzzle - put answer in comments box after clicking on 'give up'....>>> First to give correct answer wins.
ANSWER IN COMMENTS SECTION JUNE 23 2017 IF NO CORRECT ANSWERS.
This is a difficult puzzle, not for the faint hearted.
Sherlock Holmes would not find this easy
Quiz by Malbaby
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Last updated: May 22, 2017
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First submittedMay 22, 2017
Times taken33
Average score100.0%
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Hint
Answer
20/7:39/8/92:9/49/105/39:42/7/90/16/:9/53/28/16/1:74/1/85:90/53/16:53/16:15/92/7/19/68:
You will know when you are right.
+1
Level 66
May 22, 2017
Elementary! Replace each number with the corresponding symbol from the periodic table and you get: CaN YOU FInDbY MoNThS FINiSH WHAt ThIS IS PUNKEr?
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Level 71
May 22, 2017
colmaggio, ...... what can I say, I'm impressed. You have solved Challenge 4 on the first day of the challenge. You also solved Challenge 1, that makes you a double Challenge Gold Medal winner :o)........... well done. Challenge 1 & 4 colmaggio : ....... Challenge 2 Kiwirage : ........ Challenge 3 mushroomsteve : ........ .................... I will have to see what fiendish plan I can come up with next. Congratulations colmaggio.
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Level 39
May 22, 2017
I totally got this
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Level 63
May 22, 2017
Wow, impressively quick solve on this one. Not sure I would have got it. Malbaby, would you mind if I put out a challenge of my own? I like this series and am inspired to do one myself. I'd call it something like "Kiwirage Challenge" so as not to interfere with your numbering, and would of course credit you with a link to your quizzes and one of your Challenges.
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Level 71
May 22, 2017
Of course Kiwirage, go ahead, I'll make sure I get to see it.
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Level 63
May 22, 2017
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Level 71
Jun 25, 2017
Challenge 7 is now live ..... good luck!
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Level 71
Jun 27, 2017
CHALLENGE 7 SOLVED: ......Well done Arp2600, so quick again. These are not easy challenges and I'm always surprised when they are solved so quickly. Yes you are correct of course, Cities that have staged the Summer Olympics from Athens 1886 till the present and the cancelled games for WW1 & 2 you also got. The centuries too. ...... Brilliant. you now receive a 'Gold Challenge Medal', not quite an Olympic Medal but just as deserved :o)
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Level 71
Jul 1, 2017
CHALLENGE 8 ....... http://www.jetpunk.com/user-quizzes/120558/challenge-8
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Level 71
Jul 21, 2017
CHALLENGE 8 SOLVED by 'superpan'....... well done.
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Level 71
Jul 25, 2017
CHALLENGE 9 up and running.
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Level 71
Jul 25, 2017
http://www.jetpunk.com/user-quizzes/120558/challenge-9
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Level 71
Aug 27, 2017
CHALLENGE 11 .... up and running at: https://www.jetpunk.com/user-quizzes/120558/challenge-11