Puzzle: There are three boxes of fruit. One has only oranges, one has only apples, and one has both apples and oranges in it. Each box has a label. One is labeled “Apples”, one is labeled “Oranges”, and one is labeled “Apples and Oranges”. You know that every label is wrong. If you are allowed to take only one fruit from one box (without peeking inside), which box do you choose and how do you use that information to move the correct label to the correct box? Solution: Lbh xabj gung nyy bs gur obkrf ner ynoryrq vapbeerpgyl, fb lbh gnxr n sehvg sebz gur obk ynoryrq “nccyrf naq benatrf”. Vs lbh trg na nccyr lbh xabj gung gur obk unf bayl nccyrf. Abj lbh nyfb xabj gung gur obk ynoryrq “benatrf” pna’g pbagnva bayl benatrf, ohg zhfg or “nccyrf naq benatrf”. Gur ynfg obk unf bayl benatrf. Gur fnzr ybtvp nccyvrf vs lbh chyy bhg na benatr.