Is a sense of humor important in live? 

We often don't realize how important is sense of humor. If we look into some of the tests about most  appreciated qualities in other person we will see being funny and goofy really high in the ranking. That means that having this features can make us a lot more attractive for others. 
Besides that having the sense of humor can make us a lot happier. It was confirmed by scientists that laugh can really improve your psychical health and make you more positive.
In conclusion I think that having a good sens of humor can really make a difference.