Great hornbill, Khao Yai National Park, Thailand (© kajornyot wildlife photography/Shutterstock)
nikitonsky: If you put a button next to something, people will naturally assume it controls that thing. Can you guess which one turns on the socket? And what the other one do?
Cloughoughter Castle in Lough Oughter, County Cavan, Ireland (© 4H4 PH/Shutterstock)
Bear Hole Brook, Catskill Mountains, New York (© GummyBone/Getty Images)