Last week’s answer: 17:30 or 5:30 pm. The duration of the flight is 14 hours, so the time of arrival in GMT would be 8:30 + 14 hours = 22:30. Then you would take off 5 hours for the difference to get 17:30.
This week’s problem: Write the missing digits to make the sum correct.
2_3 + _4_ = 1000
The answer will be in next week’s weekly problem.