Seven was adult, and half was child.
Recently, at the reptile section of the local zoo, I was counting snakes, lizards and people. I counted a total of 27 heads and 70 feet. I know that there were exactly twice as many lizards as people. How many snakes did I count?
You were at a carnival. You had four tickets and one ride was four tickets. Once you were done, you didn't buy anymore tickets and you had one ticket left. How is that possible?