There are 2 passengers and a driver in each car, which means that in each car there are 2 passengers + 1 driver = 3 people. This means there are a total of 20 cars * 3 people per car = 60 people in the car at the start of the race. At the halfway point, there is an additional 20 cars * 1 additional passenger = 20 more people. So be the end of the race, there are 60 people at the start of the race + 20 additional people = 80 people in the cars.
The answer: 80
Reverse engineering the question: There are 20 cars lined up at a race. Each of the cars have 2 passengers and a driver, then when the cars go past the race's halfway point, each car gains another passenger. The cars then continue racing, and the race finishes once every single car has passed the finish line. People who get into the cars have to stay inside of them until the race is finished. How many people are in the cars by the end of the race?

Aliyah packs her lunch the time, so in 180 school days / 2 = she packs her lunch 90 times. Becky packs her lunch as much as Aliyah, so 90 times / 2 = 45 times a year.
The answer: 45
Reverse engineering the question: There are 180 school days in the academic year. Aliyah packs a lunch half the time. Becky packs her lunch half as much as Aliyah. How many days a year does Becky pack her lunch?

He produces 5 * 20 = 100 liters of honey. That means he keeps 100 / 2 = 50 liters of honey. So he needs 50 / .5 = 100 jars.
The answer: 100
Reverse engineering the question: James buys jars for his honey. He has 5 hives that each produce 20 liters of honey. Each jar can hold .5 liters. How many jars will he need to buy if his friend is bringing his own jars for half the honey?

On the first bounce, it will reach a height of 96 / 2 = 48 feet. On the second bounce, it will reach a height of 48 / 2 = 24 feet. On the third bounce, it will reach a height of 24 / 2 = 12 feet. On the fourth bounce, it will reach a height of 12 / 2 = 6 feet. On the fifth bounce, it will reach a height of 6 / 2 = 3 feet.
The answer: 3
Reverse engineering the question:
Tim drops a ball off the roof of a 96-foot tall building. The ball bounces to half the height from which it fell on each bounce. How high will it bounce on the fifth bounce?