a collection of riddles

This project is maintained by davidtorosyan

Welcome to my riddles

You can find some that I’ve enjoyed working on below.
See the rest of my projects at davidtorosyan.com.

100 Prisoners

Can you help the prisoners communicate using just a light bulb?


What are your odds of winning a 100 million person lottery with these rules?

Guessing a Number

Can you pick the optimal number to guess?