Correction

1. When people are 25 years old, they stop aging.

2. After/When they turn 25, they only have time to live one more year.

3. Before his mother's 50th anniversary, he bought a bottle of champagne.

4. When he hugged his mother, he wished her happy birthday.

5. His mother gave him 30 minutes to eat a decent meal when they held each other's arms.

6. They will celebrate when/after he gets back.

7. The price of the coffee rose before he decided to buy it.

8. People are paid after/when they leave the workplace.

9. He was given a lot of time by a rich man before he woke up.

10. He woke up after he became a millionaire, according to the currency-used time.