James listens to super-fast music. It is 200 beats per minute. He listens to 2 hours of music a day. How many beats does he hear per week?
Let's think: He listens to 2 * 60 = 120 minutes of music a day. So he hears 200 * 120 = 24000 beats per day. That means he hears 24,000 * 7 = 168,000 beats per week.. The answer is: 168000.

Kirill is 14 less centimeters in height than his brother. Together their heights equal 112 centimeters. How tall is Kirill in centimeters?
Let's think: Let B = brother's height in cm. Kirill = B - 14. 2B - 14 = 112 cm. 2B = 126. B = 63 cm. Kirill = 63 - 14 = 49 cm. Kirill is 49 centimeters tall.. The answer is: 49.

Miranda is stuffing feather pillows. She needs two pounds of feathers for each pillow. A pound of goose feathers is approximately 300 feathers. Her goose has approximately 3600 feathers. How many pillows can she stuff after she plucks the goose?
Let's think: Miranda will have 3600 / 300 = 12 pounds of feathers from her goose. Thus, Miranda can stuff about 12 / 2 = 6 feather pillows after she plucks the goose.. The answer is: 6.

There was some money in the cookie jar. Doris spent $6 from the cookie jar. Martha spent half as much as Doris. If there were $15 left in the cookie jar, how much money, in dollars, was there in the cookie jar at first?
Let's think:
Martha spent 6 / 2 = 3 dollars. Martha and Doris spent 6 + 3 = 9 dollars. There were 15 + 9 = 24 dollars in the cookie jar at first.. The answer is: 24.