A magical garden has two kinds of trees. A type A tree has 3 pears and 5 apples. A type B tree has 5 pears and 3 apples. There are equally many trees of each kind. The garden has 80 pears altogether. How many apples are there?
Each evening Ben predicts whether the next day will be sunny or rainy. A correct prediction earns 3 gold coins; a wrong prediction costs him 2 coins. Over the last 5 days he neither gained nor lost any coins overall. How many predictions were correct?
Five children draw the picture below to represent their sweets. Each white square represents 1 sweet, each square with an X represents 2 sweets, and each black square represents 3 sweets. Each child then eats the same number of sweets. How many sweets are left?
Ann, Ben and Chi were born on the same day of the month in the same year, but in different months. Ben was born 6 months before Chi and 5 months after Ann. In which month was Ben born?
The floor of a room is covered by identical rectangular planks, as shown. The short side of each plank is 1 m. How many metres long is the longer side of the floor?
Four friends, Tùng, Cúc, Trúc and Mai, sit on a bench. First Tùng swaps places with Trúc. Then Trúc swaps places with Mai. Finally their left-to-right order is Tùng, Cúc, Trúc, Mai. What was their original left-to-right order?