"Welcome all! Let's get our lateral thinking caps on for this mind-boggling puzzle."

In an isolated island there lived 3 men: a farmer, a scientist, and a fisherman. They never communicated with each other until an unexpected envelope arrived on each of their doorsteps. The envelope had pictures of 5 trees and one of their own tools. How did they get the envelopes?

You can ask me Yes/No questions to solve this puzzle. Try to think outside the box! Remember, the solution may not be what you expect.