1, where is the one yuan? Three people stayed in a hotel, per person per day 10 yuan. Everyone paid 10 yuan and gave it to the boss, 30 yuan. Later, the boss gave them a discount of 5 yuan and asked the waiter to return it to them. As a result, the waiter embezzled 2 yuan, and the remaining 3 yuan was refunded by each person 1 yuan, which means that each person spent 9 yuan. Three people spent a total of * * * 27 yuan, plus 2 yuan, a corrupt waiter, spent a total of * * * 29 yuan. Where did the dollar go?

2. Divide apples: Xiaomi has five classmates at home. Xiaomi's father wants to entertain six children with apples, but there are only five apples at home. What shall we do? I have to cut the apple, but I can't cut it into pieces. Xiaomi's father wants each apple to be cut into three pieces at most. This has become another topic: divide five apples equally among six children, and each apple is not allowed to be cut into more than three pieces.

3. Counting chickens in Little Tiger: During the Spring Festival, Little Tiger, a professional chicken farmer, stood in the yard, counted the total number of chickens and decided to stay. In addition to12, he also gave14 solatium to the People's Liberation Army and13 gift to the nursing home. After he sent the chickens away, he heard the chickens crowing in the room, only to know that there were 10 chickens missing. So I counted the chickens inside and outside the room again, and there was nothing wrong, no more, no less, just 1/2 left. Little careless and strange. What's the problem? Do you know how many chickens Xiao Mahu counted in the yard?