The emphasis of the paper was on defining the concept of humor, why humor is important, and how it affects people. The objectives of the research were: 1) to explore how often participants listen and tell jokes; 2) to find out what type of jokes they prefer; and 3) to examine if there is a difference in jokes preference with regard to the country the joke is from. The convenience sampling comprised adults from Croatia, Serbia and Bosnia and Herzegovina and the survey was implemented on-line. Results show that the majority of participants listen to jokes and tell them, but a smaller number of participants actively search for them. They said that they expected jokes to provide fun. The majority replied that their favorite type of jokes was dark humor, then jokes about blondes, followed by police jokes and least preferred were political jokes. Regarding the difference in jokes’ preferences regarding the countries they are from, more than half of the participants said that they preferred jokes from Bosnia and Herzegovina the most, followed by Serbia, and least from Croatia. In the end, we can conclude that humor plays a big role in a person's life, especially for improving mood.