







When is John's next birthday on a Friday? 
20190315 

Darek pose la question : The question is the following:
Last Friday 4th of April of 2014 John was 40 years old. How old will John be the next time when his birthday fell on Friday?
Thanks for your help Penny Nom lui répond. 





On what day of the week was July 4, 1904? 
20140111 

Madi pose la question : Hi guys,
I have a question. July 4, 1903, was a Tuesday. On what day of the
week was July 4, 1904? If you could give me an equation that would
work for any question like this, that would be GREAT!
Your fellow math scholar (in training),
Madi Penny Nom lui répond. 





Your birthdays until your one hundredth 
20060909 

Alan pose la question : which of your birthdays until your one hundredth, fall on the same day of the week as the day you were born? Chris Fisher lui répond. 





When will the calendar be the same as 2002? 
20020220 

John pose la question : When will the calendar be the same as 2002? I know the answer is 2013, but I don't know how to answer this mathematically, or if it is possible to do so. This is a ninth grade level algebra question my daughter received from her teacher. Any ideas? Chris Fisher, Patrick Maidorn and Penny Nom lui répond. 





Leap Year 
20000920 

Jennifer pose la question : The earth revolves around the sun in 365.24 days. How does our calendar deals with the extra 0.24 day? Penny Nom lui répond. 





Age in minutes 
19991121 

Mesha Jackson pose la question : How old would I be in minutes if I were 12 Penny Nom lui répond. 

