SEE ALSO: A math problem for 14-year-olds is stumping the world The question shows a circular puzzle with five numbers in it. There are four corresponding blanks that are meant to be filled in ...

Smith has two children. At least one of them is a boy. What is the probability that the other child is a boy? Jones has two children. The older one is a girl. What is the probability that the ...

Play this puzzle to see how far the machines have to go. By Dylan Freedman and Cade Metz Produced by Juliana Castro Varón and Umi Syam In 2019, an A.I. researcher, François Chollet, designed a ...

Clarification: This story has been updated to clarify how University of Colorado researchers handle their data collection. A student digs into a math problem that references his favorite superhero ...

A carpenter, working with a buzz saw, wishes to cut a wooden cube, three inches on a side, into 27 one-inch cubes. This can be easily done by making six cuts through the cube, keeping the pieces ...