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12,439 know how royalty-free stock videos, including high-quality 4K footage and HD video clips for download.
See know how stock images4K 0:14 | Unsure doubtful businessman stand on city downtown street shrugging shoulders making doubt gesture incertitude uncertain position don't know answer unknown reaction upset man has professional problem
4K 0:12 | woman thinking and looking for answer. shrugs her shoulders. uncertainty, question mark, no solution concept. Character animation. hopelessness, despair, frustration. puzzled person motion design
4K 0:21 | Pensive confused guy leaning hand, rubbing beard while thinking over difficult choice, imagining plan in mind, having doubts, pondering idea looking puzzled clueless. indoor studio shot isolated
4K 0:10 | Caring Teacher Explains Lesson to a Classroom Full of Bright Diverse Children. In Elementary School with Group of Smart Multiethnic Kids Learning Science, Whole Classroom Raising Hands Knowing Answer
4K 0:13 | I don't know, who cares. Portrait of confused clueless attractive woman shrugging shoulders, making no idea gesture, whatever. Indoor studio shot isolated on pink background
4K 0:10 | woman thinking and looking for answer. shrugs her shoulders. uncertainty, question, no solution concept. Looped Character animation. hopelessness, despair, frustration on her face
4K 0:11 | Clever brunette woman considering serious plan, solving problem in mind and nodding approvingly, thinking over smart idea, pondering and musing answer. indoor studio shot isolated on pink background
4K 0:13 | Indian Arabian muslim man in kitchen freelancer businessman working laptop from home puzzled shrugging shoulders don't know male customer confused unsure doubtful doubt uncertain no clue helpless loss
4K 0:10 | Frustrated confused young bearded guy in jeans shirt scratching head contemplating how to solve problem, thinking intensely with puzzled look, having doubts. studio shot isolated on blue background
4K 0:09 | Studio dark blue neon background Indian man Arabian male model guy confused shrug shoulders unsure doubtful shrugging doubt uncertain don't know problem solution question guess puzzled bemused no clue
4K 0:06 | Did you know text. fun fact animation. Light bulb symbol. Gradient color. Interesting fact dyk sign. Marketing and advertising tag. Vector animated template 4k alpha channel. motion graphic
4K 0:12 | Ajna - Third Eye Chakra: Illuminated by indigo energy, Ajna the doorway to intuition, inner wisdom, heightened perception, and profound spiritual insights. Seamless loop. Tunnel of light. VJ Loop
4K 0:14 | Elementary Classroom of Diverse Bright Children Listening to the Teacher Giving a Lesson. Everyone Raises Hand Knowing the Right Answer. Brilliant Kids in School Learning Science, Creative Thinking
4K 0:10 | I know how to earn! Cunning smart woman smiling slyly, having idea about big profit and showing money gesture, imitating to scatter cash, body language. indoor studio shot isolated on pink background
4K 0:10 | did you know sign in red speech bubble. Text in red speech bubble with black background and green screen background.
4K 0:10 | confused and puzzled woman thinking and looking for answer animation. uncertainty, no solution concept. Character trying to solve problem. Question mark in speech bubble, Brainstorming. stock footage
4K 0:12 | Need to think! Pensive doubting woman in polo t-shirt pondering and imagining in mind, wondering difficult solution, feeling confused, not sure about choice. studio shot isolated on red background
4K 0:12 | man looking at computer, thinking and looking for answer. uncertainty, question, no solution concept. Character animation. hopelessness, despair, frustration on his face. Brainstorm, difficult task
4K 0:21 | Young indifferent unsure african woman makes gesture of I don't know, can't help anything. Difficult question concept. Blue studio background.
4K 0:18 | Dont know, who cares. Confused lovely beautiful African American girl shrugging shoulders, looking with uncertain clueless expression, demonstrating indifference doubts. Indoor studio blue background
4K 0:12 | Close-up unsure confused ethnic african american man doctor surgeon in medical white coat in blue background studio shrug shake head making I don't know gesture no answer waving negative disapproval
4K 0:16 | Portrait smiling woman shrugging shoulders on grey background. Closeup real girl showing not know gesture in studio. Blonde hair female model smiling at camera. No question answer
4K 0:16 | Fast revolving gimbal shot circling young attractive woman who is in awe of the woodland forest - end with transition - concept: light, confidence, freedom, power, direction, worthy, path, outlook
4K 0:12 | I dont know what to say. Confused business woman works on laptop at office workplace. Freelancer feeling embarrassed about ambiguous question, having doubts, no answer idea, being clueless, uncertain
4K 0:11 | Did You Know! Headline In Bubbled Speech Animation New Style. Footage For Online Tips, Information, Tutorials and Facts. 4K 3D Animation
4K 0:09 | Don't know, who cares! Happy lovely beautiful girl shrugging shoulders, looking with uncertain clueless expression, demonstrating indifference doubts. indoor studio shot isolated on blue background
4K 0:06 | Close-up hand male mechanic Caucasian, 0ne hand held notepad, another handheld pen take notes on parts that needed be repaired in normal part car, before starting repair car quickly know repair point.
4K 0:13 | Attractive thoughtful young asian woman thinking and considering idea in mind looking around with serious face expression. Beautiful lady nodding approvingly make decision.Isolated on Blue Background
4K 0:15 | A computer screen showing a hexadecimal code in the shape of a woman's talking head. It's a trained artificial intelligence that knows everything. The process of neural diffusion learning, 3d render.
4K 0:20 | Portrait of happy pretty woman 20s shrugging shoulders and gesturing I do not know isolated on green screen background.
4K 0:11 | Super hero. Cartoon businessman transforming to isolated superhero on office background. Office employee becomes a strong character. He feels the power. He knows how to make money.
4K 0:20 | white banner for text, Fun fact, information. ALPHA channel animation. Light bulb symbol. Interesting fact dyk sign. Marketing and advertising tag. did you know template animated video with copy space
4K 0:05 | Reading book, child or girl in a library for a story in school campus for education on bookshelf. Smile, learning or smart kid student with scholarship studying knowledge, research or information
4K 0:15 | Pretty curly woman shrugs shoulders unaware raises hand clueless has no idea cannot answer wears casual turtleneck poses against blue background. Ethnic beautiful girl not knowing information
4K 0:12 | man thinking and looking for answer. Scratching his head. uncertainty, question mark, no solution concept. Character animation. hopelessness, despair. puzzled person, confused motion design footage
4K 0:15 | business man character with laptop animation. male thinking and looking for answer, question mark, confused, puzzled. office worker, manager, boss character standing. Question in speech bubble
4K 0:23 | Asian Male Business Woman Showing Puzzled Gesture And Saying What On Green Screen Background
4K 0:18 | creative idea.Concept of idea and innovation. light bulb blue, bulb, imagination, creativity, innovation, light bulb, solution, inspiration, energy, lamp, idea,
4K 0:23 | Indian teen student worried write formula think of sums on white board with marker pen at educational institute. Schoolgirl face problem while solving mathematics addition questions in classroom
4K 0:15 | Elementary Classroom of Diverse Bright Children Listening to the Teacher Giving a Lesson. Everyone Raises Hand Knowing the Right Answer. Brilliant Kids in School Learning. Teacher Over the Shoulder
4K 0:05 | Man Shrugging Emoji Animated on a Transparent Background. 4K Loop Animation with Alpha Channel.
4K 0:10 | woman thinking and looking for answer. shrugs her shoulders. uncertainty, question, no solution concept. Character animation with ALPHA channel. hopelessness, despair, frustration on her face
4K 0:14 | Thoughtful pretty girl with brown hair in pullover rubbing her chin and looking aside with pensive expression. pondering a solution, doubting question. indoor studio shot isolated on yellow background
4K 0:15 | I dont know what to say. Confused asian handsome man feeling embarrassed about ambiguous question, having doubts, no idea, being clueless and uncertain at home. Chinese guy sits on sofa in living room
4K 0:09 | Top view tourist visit sightseeing Royal tombs structures in ancient city of Petra, Jordan. It is know as the Loculi. Petra has led to its designation as UNESCO World Heritage Site
4K 0:08 | Don't know answer. Confused clueless uncertain brunette woman in pullover spreading hands in questioning gesture, looking puzzled and embarrassed. indoor studio shot isolated on gray background
4K 0:20 | white banner for text, Fun fact, information. 2d cartoon animation. Light bulb symbol. Interesting fact dyk sign. Marketing and advertising tag. did you know template animated video with copy space
4K 0:11 | Academic pretty student woman shrugging her shoulders in hesitation shows helpless face cant help or dont understand. posing near bookshelves at library. Doubt, misunderstanding.
4K 0:09 | No idea, I don't know. Portrait of uncertain confused woman expressing doubts and bewilderment, looking at camera with question so what, who cares. Indoor studio shot isolated on blue background.
4K 0:13 | Megaphone with text Did you know. Memphis style banner with abstract geometric shapes on yellow background. Banner and outline round elements with megaphone. 4K video motion graphic
4K 0:06 | megaphone with text "Did you know?" animation. Transparent background with alpha channel. 4K motion graphic
4K 0:16 | Confused bearded guy in jeans shirt looking at camera with embarrassed expression, gesturing i don't know, have no idea, being clueless and uncertain. indoor studio shot isolated on blue background
4K 0:05 | Doctor or physician touches the child neck to check for thyroid disease, tonsillitis And check the fever, the child is happy when he knows the health check results that he is normal. child with doctor
4K 0:07 | Closeup portrait of smug young woman, 20s, pointing her finger knowingly isolated on purple background
4K 0:09 | Woman thinking and looking for answer. shrugs her shoulders. uncertainty, question, no solution. Character animation with ALPHA channel. dilemma, confused, puzzled girl. choosing between two options
4K 0:13 | Shrug, i dont know. Perplexed bearded man in glasses in office or apartment room looking at camera and emotionally squeezes his shoulders and spreads his hands to show his ignorance. Close up
4K 0:15 | Office employee doing not know answer to manager question 4k movie slow motion. Indifference of employees concept
4K 0:10 | Megaphone banner with speech bubble and text did you know. Plexus style of green glowing dots and lines
4K 0:13 | Pensive puzzled young girl thinking isolated on pink background. Looking aside up put hand prop up on chin, finger on lips. Thoughtful woman thinks deeply chooses or ponders plan, not sure, not know.
4K 0:21 | Baby hands doing experience in cracking egg, high angle view concept of successful acquiring ability
4K 0:05 | Beautiful futuristic white robot standing near table at kitchen. I don't know hand gesture. Robotic assistant showing helpless gesture at camera. Software failure. Daytime. Modern technology. Indoors
4K 0:15 | Doubtful girl doing i dont know sign in studio, acting clueless and uncertain about question over full body greenscreen. Young adult being unsure and confused, shrugging over green screen.
HD 0:06 | Interdimensional Psychedelic Trip: Wise Monk Entity and Otherworldly Woman in DMT LSD Journey on Seamless Loop
4K 0:11 | Junior school students raise their hand in class to answer the teacher's question. Children know the answer to the question and raise their hand to answer it. People and educational concept
4K 0:18 | Man puts a coin dollar in a jar, Saving money for future growth and knowing how to manage your spending wisely, Saving money for business growth or long-term profitability.
4K 0:14 | A close-up portrait of a millennial hipster man who works at a laptop and looks at the computer screen in a puzzled way and does not know how to solve the problem. A difficult or hopeless situation
HD 0:10 | pixel BREAKING NEWS word on computer old tv vhs effect glitch interference noise screen animation seamless loop - New quality universal vintage motion dynamic animated background colorful joyful video
4K 0:10 | man thinking and looking for answer. shrugs his shoulders. uncertainty, question, no solution concept. Looped Character animation. hopelessness, despair, frustration on his face
4K 0:20 | Amazed bearded guy in jeans shirt pointing finger up having clever idea, talking inspired by new creative thought, happy to find successful solution. indoor studio shot isolated on blue background
4K 0:15 | Portrait of thoughtful confused young woman touching chin, scratching head while thinking over solution, brunette girl having doubts about difficult choice, isolated on pink studio background
4K 0:06 | A cute woman teacher fun smiles at the children during the lesson and checks knowledge of his pupils who raise their hands up. Children raising hands knowing the answer to the question which asked the
4K 0:07 | Asian in trouble because he can't speak english. Group of multi national people meeting in the office. Time remap. Speed ramp.
4K 0:14 | Close up view of handsome Afro American man in stylish tinted sunglasses looks confused and shruggs his shoulders on blank violet background in neon lights. Uncomfortable, surprise, facial expression
HD 0:10 | shiny NEWS word text white light rays moving on old vhs tape retro effect tv screen animation background seamless loop - New quality universal retro vintage colorful motivation video
HD 0:13 | Baby hands fail cracking egg surprise explosion high angle view concept of inexperience exploration and acquiring ability
