publication date: Friday, June 9, 2017 (part of Summer 2017)

category: Business

clue: Becoming a young widow with two kids might have made for some lean years if this Silicon Valley COO wasn't worth over a billion dollars.

explanation: Sandberg, COO of Facebook, was noted for her book Lean In about the need for female leaders in business and government and her role in creating the Lean In Foundation. She has written extensively about her struggles to cope with her husband's sudden death in 2015. more…

difficulty: medium

solved by: Russ Wilhelm, Steve West, Samir Mehta, LaVonne Lemler, Chris Lemler, Justin Woods, Matthew Preston, Richard Slominsky, Joanna Woods, Jesse King, and Elaine Beckland


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