Question mark with human head and lot of questions. Education and innovation concept. premium vector by Nikolamirejovska

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vector illustration business empty person sign human head face man silhouette symbol concept idea icon mark think communication businessman education pensive science solution profile trouble thinking knowledge curious mind intellect frustration thoughtful word option answer question thinker asking confused imagine consider faq know uncertainty perplexity understand indecision unanswered Visualize unsolvable

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