Matchstick Equation 4

Move exactly 2 matches to make this a valid equation. Bonus: find two different solutions. In matchstick equation puzzles, you are not allowed to make an inequality symbol such as ≠, ≥, >, <, or ≤. That would make it…

Compound Word Puzzle 3

Compound words are words that are composed of two or more other words, like high + light = highlight. Can you make compound words out of the following three words by adding the same 4-letter word either before or after each word?

Prison Keys Strategy

A prison warden was feeling capricious and played a game with the prison keys: What is the fewest number of days it would take for the prisoners to be sure everyone has their key? What was the strategy to achieve…