Hint
Start by filling the 9 gallon container, and then use that to fill the 4 gallon container.
Answer
Here are the contents of the containers after each stage:
A B
9 0 fill A
5 4 fill B from A
5 0 empty B
1 4 fill B from A
1 0 empty B
0 1 fill B from A
9 1 fill A
6 4 fill B from A
6 0 empty B
Reasoning
Each of the other words remains a real word if you remove the first and last letter: s-event-yb-raw-lc-love-rp-rope-rc-arro-t *s-win-ge-merge-dc-raft-yt-rave-ls-acre-ds-ton-ep-lung-e
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Puzzle 19
Eddie The Elephant can eat 110 bananas in 10 minutes, and Hugo The Hippo can eat 56 bananas in 8 minutes.
How long will it take Eddie and Hugo to eat 954 bananas?