simple outline mind question mark symbol graphic icon |
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navigate by keyword : question head thinking mind mark doubt problem idea human brain silhouette confusion symbol line art icon concept graphic solution ask face intelligence knowledge curiosity understanding information learning education design outline illustration creative innovation cognition psychology answer awareness uncertainty contemplation exploration introspection wonder query interrogation enigma conundrum |
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A simple and clean line art illustration of a head silhouette with a question mark inside, representing thinking, questions, or problem-solving. |
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