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Challenging Knowledge Quiz
Question 1 of 10
What 1952 invention is classified as a "ptical machine-readable representation of data" on a product?
Question 2 of 10
What expensive precious metal is a major South African export?
Question 3 of 10
What number is 20% of 40?
Question 4 of 10
Which Washington mountain erupted in 1980?
Question 5 of 10
The appendix is a small tube branching off which organ?
Question 6 of 10
What did Evangelista Torricelli invent in 1643?
Question 7 of 10
Slobodan Milošević was tried in 1999 for war crimes in which country?
Question 8 of 10
What are the artificial visual pictures that people often make from star clusters called?
Question 9 of 10
About an aging child star and her crazed sister, "What Ever Happened to Baby Jane" used actual clips from what two women's archive of films?
Question 10 of 10
Who made the song that begins with: 'Whoa! I feel good - I knew that I would, now - I feel good'?

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