Beach Day by Rodger Bliss
July 2024

What Year

My grandfather was X years old in the year X squared. In which year was he born?

For example if he was 33 years old in the year 1089 AD (= 33 x 33), he would have been born in 1056 AD – but then of course he would currently be nearly a thousand years old! You can safely assume that none of my family had children when they were very, very old.

Submit your Guess




You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

2 guesses to What Year

  • EvilCheese

    44 squared = 1936
    1936 – 44 = 1892

    45 squared = 2025
    2025 – 45 = 1980
    But it is not the year 2025 hehe :P

  • Dude

    You are correct, Cheese!

    A good starting point would be to find the age he would have to be if we were talking about 2010, and 2010 = 44.8 x 44.8 (approx). So our first guess is aged 44 in 1936 (= 44 x 44), which means he was born in 1892.

    Just to double check the next possible age. He could have been aged 43 in 1849 (= 43 x 43) and born in 1806, which was over 200 years ago, and the question said that he didn’t have children as a very old man.

    You are today’s winner.