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Pensive thoughtful black man in trouble doubting, thinking. Puzzled worried person pondering, wondering. Tension, anxiety face expression. Flat vector illustration isolated on white background
Hispanic man with beard standing over isolated background with hand on chin thinking about question, pensive expression. smiling with thoughtful face. doubt concept.
Infographic design white paper thought bubble on the checked background. Eps 10 vector file.
Thoughtful african guy thinking try solve problem pose isolated on grey studio background, worried black man in glasses feels concerned puzzled lost in thoughts pondering making decision concept image
Idea concept. Shining brain inside womans head. Creative thinking in business. Scientific discoveries. Successful learning. Brainstorm. Halftone design elements cut from newspaper. Emotion of surprise
Minimization energy consumption abstract concept vector illustration. Woman thinking about energy consumption optimization, green computing, power management, green use abstract metaphor.

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Businessman with a computer monitor head and question marksImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-computer-monitor-head-question-marks-260706197">Image used under license from Freestock.com</a>
Glowing yellow alphabet letters coming out of an open book Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/glowing-yellow-alphabet-letters-coming-open-593362457">Image used under license from Freestock.com</a>
Businessman holding a cardboard in front of his head with cityscape and ballons drawingImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-holding-cardboard-front-head-cityscape-170801306">Image used under license from Freestock.com</a>
Businessman standing and hiding his head behind an empty cloudImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-standing-hiding-head-empty-cloud-159808208">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with straight faceImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-481484839">Image used under license from Freestock.com</a>
Businessman holding book with doodle drawings and signs.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-holding-book-doodle-drawings-signs-771754483">Image used under license from Freestock.com</a>
Positive Thinking pencil strokes emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/positive-thinking-pencil-strokes-emblem-405926884">Image used under license from Freestock.com</a>
Cute black and white border collie with empty cloud above her headImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/cute-black-white-border-collie-empty-241275391">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with smiley faceImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-241259236">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with exclamation pointImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-232350085">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with spur wheelsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-237377737">Image used under license from Freestock.com</a>
Business man standing at city overlay view background Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/business-man-standing-city-overlay-view-657520681">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with diagramImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-184527557">Image used under license from Freestock.com</a>
Young businessman hiding behind a playful emoticon on cardboard Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-hiding-playful-emoticon-cardboard-588163694">Image used under license from Freestock.com</a>
Human hand sketching multiple ideas on a paperImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/human-hand-sketching-multiple-ideas-paper-158759336">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with dollar signsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-133982258">Image used under license from Freestock.com</a>
Young woman standing and gesturing with a cardboard box on her head with smiley faceImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-woman-standing-gesturing-cardboard-box-376331758">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with light bulbImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-363150881">Image used under license from Freestock.com</a>
Hands creating a form with yellow light bulb in the centerImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/hands-creating-form-yellow-light-bulb-245006971">Image used under license from Freestock.com</a>
Positive Thinking rubber seal with grunge textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/positive-thinking-rubber-seal-grunge-texture-383188513">Image used under license from Freestock.com</a>
Cute black and white border collie with empty cloud above her headImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/cute-black-white-border-collie-empty-284785709">Image used under license from Freestock.com</a>
Businessman standing and gesturing with a cardboard box on his head with spur wheelsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-standing-gesturing-cardboard-box-head-266430197">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with exclamation pointImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-241259203">Image used under license from Freestock.com</a>
Businessman holding a cardboard in front of his head with cityscape and ballons drawingImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-holding-cardboard-front-head-cityscape-241276639">Image used under license from Freestock.com</a>
Young businessman hiding behind a question mark drawn on paper Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-hiding-question-mark-drawn-645108205">Image used under license from Freestock.com</a>
3d human character is body suit morphsuit looking at hand drawn question marksImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/3d-human-character-body-suit-morphsuit-195898541">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with straight faceImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-194757716">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with question markImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-194757695">Image used under license from Freestock.com</a>
Female hand trying to write next to a few crumpled paper balls Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/female-hand-trying-write-next-crumpled-608771672">Image used under license from Freestock.com</a>
Woman standing and holding in front of her head a white paper with copy spaceImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/woman-standing-holding-front-head-white-180625370">Image used under license from Freestock.com</a>
Young woman working at her desk in the officeImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-woman-working-desk-office-104048876">Image used under license from Freestock.com</a>
Female hand next to a few crumpled paper balls drawing charts and graphsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/female-hand-next-crumpled-paper-balls-608782073">Image used under license from Freestock.com</a>
Businessman standing and thinking about questionsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-standing-thinking-questions-628092533">Image used under license from Freestock.com</a>
Shiny alphabet letters and yellow lightbulb hovering over open book Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/shiny-alphabet-letters-yellow-lightbulb-hovering-771636694">Image used under license from Freestock.com</a>
Character in suit with glowing puzzle head conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/character-suit-glowing-puzzle-head-concept-246693532">Image used under license from Freestock.com</a>
Think Tank golden emblem or badgeImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/think-tank-golden-emblem-badge-390774214">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with light bulbImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-237377836">Image used under license from Freestock.com</a>
Young businessman holding a cardboard with a clown on it in front of his headImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-holding-cardboard-clown-front-232370815">Image used under license from Freestock.com</a>
Businessman standing and gesturing with a cardboard box on his head with exclamation pointImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-standing-gesturing-cardboard-box-head-232350007">Image used under license from Freestock.com</a>
Business man standing at city overlay view background Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/business-man-standing-city-overlay-view-666126055">Image used under license from Freestock.com</a>
Young man standing with a brown cardboard box on his head with sad faceImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-brown-cardboard-box-613303157">Image used under license from Freestock.com</a>
3d human character is body suit morphsuit looking at abstract colorful lightbulbImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/3d-human-character-body-suit-morphsuit-191832476">Image used under license from Freestock.com</a>
Young female hand holding coffee cup with a lightbulb and alphabet letters above it Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-hand-holding-coffee-cup-598955018">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his head with smiley faceImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-593315396">Image used under license from Freestock.com</a>
Businessman holding a cardboard with a smoking man on it in front of his headImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-holding-cardboard-smoking-man-front-178168781">Image used under license from Freestock.com</a>
Young man standing and gesturing with a cardboard box on his headImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-man-standing-gesturing-cardboard-box-160155902">Image used under license from Freestock.com</a>
Business person choosing between two directionsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/business-person-choosing-two-directions-1555325171">Image used under license from Freestock.com</a>
friendly business woman with pencil on face over whiteImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/friendly-business-woman-pencil-face-white-2320745">Image used under license from Freestock.com</a>
Woman covering her face with a banner ad isolated on whiteImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/woman-covering-face-banner-ad-isolated-46017088">Image used under license from Freestock.com</a>
Yellow question marks hovering over open book Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/yellow-question-marks-hovering-open-book-621632669">Image used under license from Freestock.com</a>

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