Real-world example: What weighs more, a pound of feathers or a pound of gold? Reflexive answer: gold (well obviously gold is heavier than feathers) Logical an

Real-world example: What weighs more, a pound of feathers or a pound of gold? Reflexive answer: gold (well obviously gold is heavier than feathers) Logical answer: neither (1 pound = 1 pound) Actual trick answer: feathers (precious metals used troy weights instead of the one just about everything else used, and 1 pound in the troy system weighs less than 1 pound in the other one) https://en.wikipedia.org/wiki/Troy_weight https://en.wikipedia.org/wiki/Troy_weight