When you open your browser goto google or any other searchengine and type in MAYA 3d tutorials.

I found the 2 following links after a mere 10 minutes search there not about banannas, but quite informative nonetheless

https://www.thegnomonworkshop.com/tutorials.html
https://www.3dtotal.com/tutorials/

Buying a dvd and/or book is also recommendable, but for the time being i think you have enough with the free tutorials on the internet.