Signs can help one get out of confusion, whether they’re put up on fences, in stores, lined up along the roads or elsewhere. But some of them are what makes the person confused in the first place; or make them burst out with laughter at how ridiculous—or sometimes witty—they are.

Plenty of such examples can be found on the ‘Absurd signs’ Facebook group. Dedicated to all sorts of signage, the group was started just a couple of years ago, but has already amassed nearly 30 thousand members. Today, we have listed some of their best signs for you to browse, so scroll down to find them, and see for yourself how funny, informative, useless, confusing, and beyond they can be.

In the hopes of understanding how such absurd signs can affect us and why we might find them entertaining, Bored Panda turned to two experts who were kind enough to answer a few of our questions. Scroll down to find insight shared by professor of Computer Science at Dalhousie University and expert in cognitive neuroscience, Thomas Trappenberg, and Professor of Linguistics at University of Nevada, sociolinguist, and author, Valerie Fridland.