Statistics for US Interstates by a Single Clue

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Clue	Answer	% Correct
The longest Interstate highway	90	95%
The only mainline interstate in ME, RI, and DE	95	81%
Runs for over 800 miles in Texas alone	10	80%
Ends at both Canada and Mexico (as of now)	5	78%
The only mainline interstate in Nebraska	80	76%
Runs from near New Orleans to Chicago	55	71%
Follows the eastern edge of the Rocky Mountains	25	67%
Follows the Appalachian Mountains from NY to TN	81	60%
The only east-west interstate to end at a foreign country	94	54%
Goes through Great Smoky Mountains National Park	40	52%
Has numerous short segments from Michigan to Texas	69	52%
Splits into east and west routes twice	35	51%
The newest interstate	14	46%
The shortest mainline Interstate highway	97	39%
Follows the Connecticut River	91	37%
The longest intrastate interstate	45	34%
Has an exit for Zzyzx Rd	15	30%
Is multiplexed with the same number US route for its entire length	41	16%
Is in one state but has three different sets of exit numbers	87	14%
Lent its name to a Modest Mouse song	8	9%