Puzzles & Quizzes

Can You Solve Stan's Birthday Logic Puzzle?

Stan's birthday logic puzzle, which can be found on Fit Brains, can be solved quickly in your head. How fast can you do it? Scroll down to read the logic puzzle, and keep scrolling to get the answer and explanation.

Related: Can You Solve The Lying Lion And Unicorn Logic Puzzle?

Here's The Puzzle

Phil asks his friend Stan when his birthday is. Stan replies, "I was 32 the day before yesterday, and next year I'll be 35." Phil pauses to think about it, but he figures it out. When is Stan's birthday, and how is his response even possible? Give this puzzle a try and scroll down to read the answer when you're ready.

Related: Can You Solve The Tricky Married Logic Puzzle?

Here's The Answer

Stan's birthday is December 31. Today is January 1, which means that the day before yesterday (December 30) Stan was 32 years old, and turned 33 yesterday (December 31). This year, Stan will turn 34 on December 31, so next year he will turn 35.

Is there something you're curious about? Send us a note or email us at editors (at) curiosity.com. And follow Curiosity on Facebook, Instagram and Twitter.

Watch And Learn: Our Favorite Logic Puzzles

The Cheryl's Birthday Problem

Written by Curiosity Staff April 4, 2017

Curiosity uses cookies to improve site performance, for analytics and for advertising. By continuing to use our site, you accept our use of cookies, our Privacy Policy and Terms of Use.