Statistics for Hidden Letters #3

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Hint	Answer	% Correct
European currency mostly used	Euro	98%
Capital of Egypt	Cairo	96%
Longest river in Africa	Nile	94%
Most populous country in Africa	Nigeria	92%
Second most populous country in Asia	India	90%
Guided answer #1: In order, enter first letter of every answer entered so far	CON	88%
Famous empire that was in place in current-Turkey	Ottoman	86%
One of the two rivers flowing through Mesopotamia, not Euphrates	Tigris	84%
Guided answer #2: In order, enter first letter of every answer entered so far	CONTIN	82%
Hidden word:	CONTINENT	80%
Capital of Tennessee	Nashville	78%
Capital of Estonia	Tallinn	73%