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• ## Puzzle: What fraction is shaded?0

There’s nothing like a great geometry puzzle to get the Internet into a frenzy.  Ed Southall, author of “Geometry Snacks,” shared a photo of a pink triangle inside of a square and challenged people to figure out how much of the square is shaded pink. Here’s the puzzle: What fraction is shaded? The Solution: According

• ## The Bat and A Ball Problem72

If a baseball and a bat cost \$1.10 together, and the bat costs \$1.00 more than the ball, how much does the ball cost? Was your answer that the ball cost 10 cents? If so, you’d be wrong. Here’s the solution: Although \$1.00 + \$0.10 does equal \$1.10,  if you take \$1.00 – \$0.10 you

• ## Do Dogs have Episodic Memory: The Alaskan Malamute Waits for the Ice Cream Truck Every Day4

Dogs are man’s best friend. They are loyal and faithful. But, do dogs display any memory? This dog above remembers to wait for the ice cream truck every day. Semantic Memory:   Associating Commands with Actions  https://www.smithsonianmag.com/science-nature/dogs-remember-more-than-we-think-180961219/ Dogs can listen for commands and perform an action. They have a unique memory to associate a command with

• ## The 3 Switches Puzzle (and solution)0

Can you solve the “3 Switches” puzzle? You are in the basement of a house where there are are three identical on-off switches.  One of them controls a lamp in the attic, and two of them do nothing.  You have no way to see into the attic or to see reflected light from the attic.