A new math puzzle designed to challenge readers of all ages is coming to the Daily Press. David Genter, a puzzle developer ...
An airplane, traveling with a constant engine speed, makes a large and perfect circle parallel to the ground. There is no wind. Will it complete the same circle in greater, less or the same time if ...
Two missiles speed directly toward each other, one at 9,000 miles per hour and the other at 21,000 miles per hour. They start 1,317 miles apart. Without using pencil and paper, calculate how far apart ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback