The wording on this one sounds like it picked up an old riddle/trivia question and mixed it together the wrong way:
What weighs more, a pound of feathers or a pound of gold?
The trick answer is that the pound of feathers weighs more, because gold is (was) measured in a system where 1 pound = 12 ounces, while feathers would be weighed using the modern system where 1 pound = 16 ounces.
Yes, this is overfitting caused by dataset bias. People don't ever say "What weighs more, a pound of feathers or two pounds of feathers?" So it just ignores the numbers.
What weighs more, a pound of feathers or a pound of gold?
The trick answer is that the pound of feathers weighs more, because gold is (was) measured in a system where 1 pound = 12 ounces, while feathers would be weighed using the modern system where 1 pound = 16 ounces.
https://en.wikipedia.org/wiki/Troy_weight