photo but Carolyn Bertsch Luna Herrera, 7, of Sartell chooses her next move in a game of giant chess Jan. 23 at Family Math ...

It's time to send out the Christmas newsletter again this year. Sure, it could be the same old dry recitation of your family ...

Show puzzle solution Is there any other point on the globe, besides the North Pole, from which you could walk a mile south, a mile east, and a mile north and find yourself back at the starting point?

You can test yourself with the help of the problem published by OBOZ.UA today. Its condition is quite simple: you need to tell how many times the number 7 occurs between 1 and 100. To help you better ...

Show puzzle solution For simplicity, let’s assume that the small squares have a side length of 1. The figure consists of 25 small squares, so the full final square must have a side length of 5.