Find The Mistake!

This is a cool picture I found the other day and wanted to share here. It looks obviously very simple but in really, as you might except, it’s actually not that quick to find the correct answer. You might even come to a conclusion that there is actually everything ok with that puzzle. This is so funny I think that most people will spend like at least 4 minutes looking at the image like crazy thinking to themselves like “what..have I lost my precious IQ points somehow?:) Haha, not but seriously don’t worry, everybody is different and you might just be out of concentration or something like that. I remember that to me it took about 1 minute though. Tell us how long it took you – the truth though no need to be shy.