How can poisson and normal distribution be used in statistics, data analytics and real life?

Question

Also, what are the limitations of poisson and normal distribution, and how can they be circumvented?

Answer 1

Many phenomena are normally distributed: test scores and QA in particular, the products being

evaluated shall follow normal distribution.

Poisson is used to model the timing of events. For example, it can be used to model

customers entering the business, # of phone calls per hour, etc.