Sunday Times Teaser 2738 – Prime Day for the Irish
by H Bradley and C Higgins
Published: 15 March 2015 (link)
St Patrick’s Day is March 17 and it is a prime day in many ways: What number month? 3; What number day? 17; How many letters in “March”? 5; How many days in March? 31.
I asked Pat the same questions about his birthday this year — but I simply asked whether the four answers were prime or not. When he had told me he said “now, if I told you its day of the week this year, you should be able to work out my birthday.” Then, without me actually being told the day, I was indeed able to work out his birthday.
What is his birthday?