Based on the clue '2 of the 5 presidents in the 20th century who were...', what is the answer?

Based on the clue '2 of the 5 civilized tribes so called because they...', what is the answer? Based on the clue '2 of the 5 countries that border argentina', what is the answer? Based on the clue '2 of the 5 different nuts in a jar of planters del...', what is the answer? Based on the clue '2 of the 5 presidents buried west of the mississip...', what is the answer? Based on the clue '2 of the 5 specific places travelin man ricky nels...', what is the answer? Based on the clue '2 of the 5 stans that border china', what is the answer? Based on the clue '2 of the 5 states whose mottoes arent in english o...', what is the answer? Based on the clue '2 of the 5 us presidents who played football for t...', what is the answer?