What do the following numbers have in common?

16

22

31

42

51

 

Answer:

 

Each number is associated with a place, event, or situation that has cultural significance:

 

16: Sweet Sixteen - The coming of age birthday for a girl

                                 

22: Catch 22 - From the 1961 Joseph Heller novel - Describing a difficult situation for which

                         there is no solution because the solution is the problem

31: 31 Flavors - The iconic Baskin-Robbins ice cream store - based on the idea of new flavor              

                            for each day of the month

42: 42 - The answer to everything - according to the computer Deep Though in Douglas Adams'                      The Hitchhiker's Guide to the Galaxy 

51: Area 51 - A highly classified US Air Force facility in southern Nevada that is used for flight                                 testing and training, but is surrounded by theories of UFO's and other alien activity