Test your math skills with fun trivia for all ages!
In Erin Bryan’s 5th grade math classroom, TGIF takes on a whole new meaning. Fridays don’t just herald the coming weekend. They’re also game days. “They all come in here on Fridays pumped,” said Bryan ...
The biggest stories of the day delivered to your inbox.
Here’s a fairly recent twist on an old type of logic puzzle. A logician vacationing in the South Pacific finds himself on an island inhabited by the two proverbial groups of liars and truth-tellers.