![](http://www.alamy.com/thumbs/6/E45891CC-804E-4390-9424-F169E0128052/C95166.jpg)
question mark under a magnifying glass, with isolated background
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Photo credit: © Jakob Kamender / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: advice, analyzing, answer, background, business, close-, concepts, confusion, discovery, examining, exploration, faq, focus, glass, ideas, instrument, isolated, learning, lens, loupe, macro, magnification, magnifying, mark, object, optical, orthographic, problems, punctuation, question, red, research, science, searching, sign, single, solution, studying, suspicion, symbol, text, transparent, uncertainty, white