Which Glass Contains the Most Water …This Simple Puzzle Is Tricking Thousands of People
At first glance, the answer seems obvious.
Four identical glasses labeled A, B, C, and D are each filled with water. Inside every glass sits a different object. Your task is simple:
Which glass actually contains the most water?
Easy enough… or is it?
This deceptively simple visual puzzle has been confusing people all over the internet because the correct answer has less to do with appearance and more to do with science.
Take a closer look before reading ahead — which one would you choose?
The Objects Inside the Glasses
Each glass contains a different item:
Glass A: Paperclip
Glass B: Baseball
Glass C: Eraser
Glass D: Wristwatch
At first, many people assume all four glasses contain the same amount of water because the water levels appear identical.
But that’s exactly where the trick lies.
The Secret Is Water Displacement
To solve this puzzle, you need to think about one important scientific principle: displacement.
When an object is placed into water, it takes up space inside the glass. The larger the object, the more water it displaces.
That means:
Bigger objects leave less room for water
Smaller objects leave more room for water
So even if the water level looks the same in every glass, the actual amount of water is different.
The Correct Answer
Glass A contains the most water.
Why?
