Why do old men have big ears? Can smiling at a crocodile affect your desire to gamble? And most importantly, can cats act as both a liquid and a solid? These are the questions that keep us awake at night. Fortunately, there are scientists working diligently on these puzzles, as well as many other weird and curious questions. Their efforts have not gone unnoticed, and most recently were celebrated at the 2017 Ig Nobel Awards, a scientific recognition of the strangest and most obscure scientific experiments or studies done in that year.