Mary was working in a chemistry lab with...

Riddle: Mary was working in a chemistry lab with a mixture of chemicals that was 90% water and weighed 20 pounds. After returning to the lab from a weekend break, she calculated the mixture was now 50% water. How much does the mixture now weigh? For purposes of this puzzle, assume the non-water part of the mixture was not affected by evaporation.

Answer: 12 Pounds

Rating: 100%

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Last Updated: Thursday, April 24, 2025
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Riddle of the Day

Bouncing Bob was riding a particularly frisky horse when suddenly its bridle came off. As they raced down the road, a screaming Bob clung to the horse's ears for dear life. Out of the corner of his eye, Bob saw a car coming, and realizing the horse was completely out of control, he panicked. Flailing his arms about, he accidentally caused the horse to come to an abrupt halt. What could Bouncing Bob have done to make the horse stop?