[Question]A farmer has 52 cows. Each cow gives 5 liters of milk a day. How many liters of milk does the farmer get in a week?
[Answer]The amount of milk one cow gives in a week: 5 liters / day * 7 days / week = 35 liters / week. The amount of milk 52 cows give in a week: 52 cows * 35 liters / week / cow = 1820 liters / week. The answer is 1820.

[Question]To make 3 km, Ben walked for 2 hours. Continuing at the same speed, how much time in minutes would it take him to travel 12 km?
[Answer]We have 12 km / 3 km = 4. So, the distance covered in 12 km is 4 times greater than 3 km. The time taken will also be 4 times greater. So, 2 hours x 4 = 8 hours. We convert the time to minutes: 8 hours * 60 minutes / hour = 480 minutes. The answer is 480.

[Question]Molly got a bike for her thirteenth birthday. She rode her bike 3 miles a day, every day, until she turned 16. How many miles did Molly ride on her bike?
[Answer]Molly rode for 16 – 13 = 3 years. She rode for 3 years x 365 days = 1,095 days. She rode a total of 3 miles x 1,095 days = 3,285 miles. The answer is 3285.

[Question]A jug is filled with 5 liters of water and a bucket is filled with 4 jugs. How many liters of water are contained in 2 buckets?
[Answer]
4 jugs contain 4 * 5 = 20 liters of water. 2 bucket contains 20 * 2 = 40 liters of water. The answer is 40.