7 numbers by Penny Fan 2020-01-28 TuesdayThe ages of planet Earth and MarsWednesdayNational Sleep Foundation’s Sleep Duration Recommendations (minimum)ThursdayStarbucks coffee caffeine contentFridayThe calendar of year 2020, June being my birthday monthSaturdayGravitational Force on Earth and MoonSundayTime of the day when I wake upMondayMy birth year(2000) and now(2020)