Unfortunately, there is a small error on the letter. It says "How big were my 5 beers?". Correctly it should read: "How big are my 6 beers?".
A ruler could help you further with this task.
Dear players of Charlie's journey, with the batch number (NNW0424CR1EN). Unfortunately, we got a few things mixed up with the beer glasses. Therefore you will find the correct order below. We apologise for the mistake.
If you use the beer measurements to measure from the centre of the clock to the number of minutes then you will get exactly six letters.
The letters in the solution give you the word MARBLE. Can you find the next letter?