Mother made 2 dozen brownies and placed them on the kitchen counter to cool. Father smelled the brownies, came into the kitchen and ate 8 of them. Then, their daughter, Mooney, wandered into the kitchen and ate 4 of the brownies. The next morning, Mother made another two dozen brownies and added them to those remaining from the day before. After that, how many brownies were on the counter?
Let's think: Two dozen brownies is 2 * 12 = 24 brownies. After Father ate his 8, there were 24 - 8 = 16 brownies remaining on the counter. After Mooney ate her 4, there were 16 - 4 = 12 brownies remaining on the counter. Mother made a second batch of two - dozen brownies, or 2 * 12 = 24 brownies. After Mother added the second two - dozen, there were 12 + 24 = 36 brownies on the kitchen counter.. The answer is: 36.

Lovely cuts her birthday cake into 12 equal pieces. Only one-fourth of the cake was eaten by her visitors and the rest were kept. How many slices of cake were kept?
Let's think: 12 / 4 = 3 slices of cake were eaten by Lovely's visitors. So, 12 - 3 = 9 slices of cake were kept.. The answer is: 9.

Jerica is twice Louis' age. Matilda is 7 years older than Jerica. If Louis is 14, how many years old is Matilda?
Let's think: Jerica = 2 * 14 = 28. Matilda = 28 + 7 = 35. Matilda is 35 years old.. The answer is: 35.

Carlos and Diego are racing around the block. Carlos runs around the entire block in 3 minutes. Diego runs around half the block in 2.5 minutes and then is tripped by a dog and can't finish. Assuming he kept up the same speed the entire race, what would've been the average time in seconds for the racers?
Let's think:
If he finished the race, it would've taken 5 minutes because 2.5 x 2 = 5. Their total time would've been 8 minutes because 3 + 5 = 8. The average would've been 4 minutes because 8 / 2 = 4. The average time in seconds would've been 240 because 4 x 60 = 240.. The answer is: 240.