Each day, Anna must do 2 Math exercises or 3 English exercises. After a week, she has done 10 Math exercises. How many English exercises has she finished in that week?
A movie on the TV is 90 minutes long. It starts at 9:10 a.m. There are two 8-minute breaks and one 5-minute advertising break. What time does the movie end?
There are 5 different piles of bricks as below. For every 5 seconds, a worker can move 1 brick from one pile to another. At least how many seconds does he need to move the bricks so that all piles have the same number of bricks?
Kellie owns more cats than Andy and more dogs than Barney. Andy owns more dogs than Kellie and fewer cats than Barney. Which of the statements must be true?
Teddy added X to Y. However, he made two mistakes. The first was changing the hundreds digit of X from the correct 4 to an incorrect 9. The second was changing the tens digit of X from the correct 7 to an incorrect 1. Teddy obtained the incorrect sum 1000. Find the correct sum.
36 identical red squares of side length 3 cm are spaced at equal intervals along the perimeter of a square rug, including each of its corners, as in the figure below. The distance between two adjacent squares is 2 cm. How long is one side of the rug?