← Paradoxes & riddles
1:25
Survivorship Bias
the missing bullet holes
During World War II, military planes returning from missions were covered in bullet holes, mostly on the wings and body, and hardly any on the engines. Officers asked where to add armor. The obvious answer: where the holes are.
Source: A classic puzzle, retold by INFINITE SUM and fact-checked against our curated notes
Want another one?
Type the name of a paradox or riddle you've heard of, or browse the rest of the archive.