What are the advantages of ANOVA over the mean test and what are the disadvantages? Where would I use this in my everyday life?

Can you help me with definitions and how to explain the use of the statements below in everyday life? I am trying trouble relating the statements to personal issues or issues related to work life.

*What are the advantages of ANOVA over the mean test and what are the disadvantages? Where would I use this in my everyday life?

*What are the major distinction between a paired T test and the standard two mean hypthesis test? Where would you use a paired T test in my work life or everyday life?

*What are the major differences between the single mean hypothesis test and where would someone normally look at comparing two means? Where would I use a two mean test in my everyday life and work life?