What is Buddhism?

I'd like to clarify what Buddhism is.
The heart and main objective of Buddhism as a whole is to end suffering.
This is a universal theme in all variations of Buddhism. In it's purest form, Buddhism is not a religion, but a philosophy. There is no worship of Buddha that takes place. The Buddha taught that all of the answers and solutions come from inside oneself. He says that he is a teacher, a guide to help us find our way to the end of suffering.
Just to clarify, the end of suffering does not refer to death or the afterlife. Buddhists strive to end suffering within themselves and their community in life.

How might we go about ending suffering?
The Buddha gave us a couple of great resources for understanding our mind. I call them resources because the full understanding of our own suffering does not come from sources outside oneself. However it is very unlikely that we will be able to understand our suffering completely without them, therefore they are essential.
Anyways, these great resources are: the four noble truths and the eight-fold path. My favorite versions of them is from http://unconditionalawakening.blogspot.com/2014/06/the-four-noble-truths-twelve-turnings.html.
Please take time to read these resources. They are the foundation of Buddhist practice.
It will take time to understand them. They take some contemplation to fully understand. You will find that it will pertain to any and all suffering you may encounter.

Thank you for your time.
May your day be filled with peace and mindfulness.

And don't forget to empty your cup! :)