#1 Mathematics:

Advil / Via twitter.com

#2 Home Economics:

JustinHillister / Via twitter.com

#3 Culinary arts:

alovesun / Via twitter.com

#4 Linguistics:

(This may or may not be true.)
JackedYoTweets / Via twitter.com

#5 Etymology:

tumisole / Via twitter.com

#6 Financial Planning:

MissCashBrown / Via twitter.com

#7 Sociology:

squidslippers / Via twitter.com

#8 Technology:

censoredialogue / Via twitter.com

#9 Technology II:

sassy_md_rn / Via twitter.com

#10 Music Theory:

Lawrence_Miles / Via twitter.com

#11 Communications:

Mydar / Via twitter.com

#12 Economics:

pezyoo / Via twitter.com

#13 Urban Planning:

rachsyme / Via twitter.com

#14 US History:

ChappellTracker / Via twitter.com

#15 Engineering:

PeIicans / Via twitter.com

Via BuzzFeed, Preview photo credit: sassy_md_rn / twitter.com