The moon. Even though the true moon cycle is about 29.5 days, it takes 27 days, 7 hours, and 43 minutes for our Moon to complete one full orbit around Earth. Thus you can see the full moon every 27 days or you can moon yourself every day in the mirror. Not that you’d want to. Does anyone moon themselves? Can’t say as I’ve ever had the “pleasure”.
Most of you have two eyes. I only have one. Most of you have eyeballs. I do not. Your eyes aren’t dangerous, neither are mine. But all together, I am extremely dangerous. You can see things with your eyes. I can’t see anything, even though the air is clear where my eye is.
Peggy wanted to buy a talking parrot and went down to the pet shop. She bought a parrot after being assured it would repeat any word or phrase it heard. Peggy bought the parrot and took it home, but it still hadn’t said a word after a few weeks. She returned to the shop to complain, but discovered the original assurances were still accurate. Why didn’t the parrot talk?
I was visiting a friend one evening and remembered that he had three daughters. I asked him how old they were. “The product of their ages is 72,” he answered. Quizzically, I asked, “Is there anything else you can tell me?” “Yes,” he replied, “the sum of their ages is equal to the number of my house.” I stepped outside to see what the house number was. Upon returning inside, I said to my host, “I’m sorry, but I still can’t figure out their ages.” He responded apologetically, “I’m sorry, I forgot to mention that my oldest daughter likes strawberry shortcake.” With this information, I was able to determine all three of their ages. How old is each daughter?
The house number alone would have identified any of these groups. Since more information was required, we know the sum left the answer unknown. The presence of a single oldest child eliminates “2 6 6”, leaving “3 3 8” as the only possible answer.