After receiving several requests from our users, we decided to make available in this place the last three challenges / problems that came out in the previous days. We hope you have fun trying to get the answers right. Good luck!
Problem of February, 21
Problem of February, 22
Problem of February, 23
To err is human. If you find any error in our answers or in the way the questions are asked, please feel free to contact us. We will try to correct it as soon as possible.