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Yeah, it happens. I feel your emotion. #36 is so easy I didn't even care to check my answer. Suffice to say, I blundered badly. Looking at the answer I was like "huh?!" and after rereading the brain game it hit me. It kinda feels like a child-proof object that I cannot seem to master (and that happens way too often). Or worse, switching on my washing machine. It has touch buttons that simply fail to notice my attempts. My son of one and a half, always helpful, assists me in getting life into that 'thing'. And then I am humbly subjected to the brutal truth of life: IQ is just a number. On the bright side, there is something new to learn every day.

It sure is, we do learn everyday.
Funny thing i submitted the answer 3 times in like 5 min!! I was in a huge hurry i was about to go out, my brother was waiting for me, we were going to watch Avengers, we were a little bit late, and then i saw puzzle, and im like easy one did not bother to read the text divided numbers into 2 groups, sent answer and as i sent it i realised that i have 35 on one 33 on other side, fixed it sent again and while i was closing that tab i saw "4 regions".. totally missing "each containing four numbers"..
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they all add up to 17 :)