HardClassic
I am lighter than a feather yet I carry millions of tonnes. I have no shape yet I take every shape. I float even though I am enormously heavy. What am I?
Answer: 4 — or 0 (if you fold the digit 8 horizontally, both halves are 0). Half of eight is four mathematically. But if you draw the number 8 and fold it horizontally across the middle, both the top and bottom halves look like 0. Two correct interpretations of the same question.