Check it out. Do it, and post time and tried.
http://www.aptitude-test.com/einsteinsriddle.html
Edit; I dont know how long it took me, I cleared it after someone interrupted me and the timer was still going, it was 25ish minutes.
http://www.aptitude-test.com/einsteinsriddle.html
Edit; I dont know how long it took me, I cleared it after someone interrupted me and the timer was still going, it was 25ish minutes.
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