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Question mark on curcuit board . Mixed media
Last piece of jigsaw puzzle - blue tone
missing puzzle to solve.
The researcher takes an analysis of abstract virus model. Antiviral research to find a cure or treatment for the covid-19 virus. Working in a biological laboratory to solve the problem of a worldwide
Front view of an Asian businessman thinking and looking to the right. A blackboard with a solution sketch on it. A bright light bulb is above his head.

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Problem grunge sealImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/problem-grunge-seal-382827964">Image used under license from Freestock.com</a>
Smart businessman holding yellow sign with question markImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/smart-businessman-holding-yellow-sign-question-630803576">Image used under license from Freestock.com</a>
Young female telemarketer with white mixed media icons around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-mixed-media-675525676">Image used under license from Freestock.com</a>
Solution with chalkboard textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/solution-chalkboard-texture-429556066">Image used under license from Freestock.com</a>
Young female telemarketer with white envelopes surrounding her Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-envelopes-surrounding-678038902">Image used under license from Freestock.com</a>
Smart businessman holding yellow sign with question markImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/smart-businessman-holding-yellow-sign-question-621626789">Image used under license from Freestock.com</a>
A handsome sales guy standing in front of a blue urban concrete wall with illustration of white graph chart arrows cocnceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/handsome-sales-guy-standing-front-blue-648415582">Image used under license from Freestock.com</a>
Problem emblem draw with pencil effectImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/problem-emblem-draw-pencil-effect-377692840">Image used under license from Freestock.com</a>
Young female telemarketer with white speech bubbles around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-speech-bubbles-686548378">Image used under license from Freestock.com</a>
Yellow question marks hovering over young handImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/yellow-question-marks-hovering-young-hand-598939049">Image used under license from Freestock.com</a>
An elegant confident businessman in suit knows the solution to a problem concept with drawn arrow illustration on urban concrete wall conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/elegant-confident-businessman-suit-knows-solution-657518281">Image used under license from Freestock.com</a>
Young female telemarketer with white mixed media icons around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-mixed-media-662057092">Image used under license from Freestock.com</a>
Young businessman standing and thinking without head Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-standing-thinking-head-653378875">Image used under license from Freestock.com</a>
Young female telemarketer with white envelopes surrounding her Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-envelopes-surrounding-670191076">Image used under license from Freestock.com</a>
Young female telemarketer with blue background and world map and numbers behind herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-blue-background-world-670183735">Image used under license from Freestock.com</a>
A handsome sales guy standing in front of a blue urban concrete wall with illustration of white graph chart arrows cocnceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/handsome-sales-guy-standing-front-blue-666123322">Image used under license from Freestock.com</a>
Smart businessman holding round sign with yellow lightbulb Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/smart-businessman-holding-sign-yellow-lightbulb-631565588">Image used under license from Freestock.com</a>
Young female telemarketer with white mixed media icons around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-mixed-media-653365198">Image used under license from Freestock.com</a>
Young female telemarketer with blue background and world map and numbers behind herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-blue-background-world-667156516">Image used under license from Freestock.com</a>
Young female telemarketer with white speech bubbles around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-speech-bubbles-662056942">Image used under license from Freestock.com</a>
Young female telemarketer with blue background and connectivity conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-blue-background-connectivity-636044993">Image used under license from Freestock.com</a>
Young female telemarketer with white envelopes surrounding her Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-envelopes-surrounding-654855145">Image used under license from Freestock.com</a>
Young female telemarketer on a white backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-background-644320618">Image used under license from Freestock.com</a>
Businessman finding the solution of a mazeImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-finding-solution-maze-336363182">Image used under license from Freestock.com</a>
Young businessman hiding behind a lightbulb drawn on paperImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-hiding-lightbulb-drawn-paper-608705093">Image used under license from Freestock.com</a>
Young female telemarketer with blue background and connectivity conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-blue-background-connectivity-645097273">Image used under license from Freestock.com</a>
Smart businessman holding round sign with yellow lightbulb Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/smart-businessman-holding-sign-yellow-lightbulb-613338230">Image used under license from Freestock.com</a>
Problem written on a chalkboardImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/problem-written-chalkboard-380441425">Image used under license from Freestock.com</a>
Casual businessman holding yellow sign with question markImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/casual-businessman-holding-yellow-sign-question-613337750">Image used under license from Freestock.com</a>
Young businessman hiding behind a lightbulb drawn on paperImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-hiding-lightbulb-drawn-paper-598963076">Image used under license from Freestock.com</a>
Smart businessman holding yellow sign with question markImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/smart-businessman-holding-yellow-sign-question-603599996">Image used under license from Freestock.com</a>
Young female telemarketer with white speech bubbles around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-speech-bubbles-653365063">Image used under license from Freestock.com</a>
Young female telemarketer with white envelopes surrounding her Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-envelopes-surrounding-667156492">Image used under license from Freestock.com</a>
An elegant confident businessman in suit knows the solution to a problem concept with drawn arrow illustration on urban concrete wall conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/elegant-confident-businessman-suit-knows-solution-630797213">Image used under license from Freestock.com</a>
Young businessman in black suit standing in front of a drawn yellow lightbulb Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-black-suit-standing-front-593356829">Image used under license from Freestock.com</a>
Young businessman in black suit standing in front of a drawn yellow lightbulb Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-black-suit-standing-front-603600062">Image used under license from Freestock.com</a>
Young female telemarketer on a white backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-background-636045098">Image used under license from Freestock.com</a>
A handsome sales guy standing in front of a blue urban concrete wall with illustration of white graph chart arrows cocnceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/handsome-sales-guy-standing-front-blue-630797255">Image used under license from Freestock.com</a>
An elegant confident businessman in suit knows the solution to a problem concept with drawn arrow illustration on urban concrete wall conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/elegant-confident-businessman-suit-knows-solution-639403738">Image used under license from Freestock.com</a>
Young female telemarketer with a 24/7 sign next to herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-247-sign-next-662056924">Image used under license from Freestock.com</a>
Young female telemarketer on a white backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-background-654845038">Image used under license from Freestock.com</a>
Young female telemarketer with white speech bubbles around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-speech-bubbles-636044909">Image used under license from Freestock.com</a>
Young female telemarketer with blue background and world map and numbers behind herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-blue-background-world-653365276">Image used under license from Freestock.com</a>
Young female telemarketer with a 24/7 sign next to herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-247-sign-next-644320168">Image used under license from Freestock.com</a>
Young female telemarketer with white speech bubbles around herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-speech-bubbles-645097378">Image used under license from Freestock.com</a>
Young female telemarketer with a 24/7 sign next to herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-247-sign-next-653365105">Image used under license from Freestock.com</a>
An elegant confident businessman in suit knows the solution to a problem concept with drawn arrow illustration on urban concrete wall conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/elegant-confident-businessman-suit-knows-solution-613321862">Image used under license from Freestock.com</a>
Young female telemarketer with white envelopes surrounding her Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-envelopes-surrounding-644320150">Image used under license from Freestock.com</a>
Young female telemarketer with blue background and world map and numbers behind herImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-blue-background-world-645097294">Image used under license from Freestock.com</a>
Young female telemarketer with white envelopes surrounding her Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-female-telemarketer-white-envelopes-surrounding-628062869">Image used under license from Freestock.com</a>

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