Gourd vs Squash vs Pumpkin

I was at a 2 day Farmers' market in Winnipeg.  The most common question I got was "How do you cook a gourd?"  Well you can't cook a gourd they are just for decoration.  Now what is the difference between a squash and pumpkin, that's a bit tricky and I had to do some research online to really understand the difference.

What is the difference:

Here is a good link to check out Pumpkin vs Gourd vs Squash.

Well to confuse things even more a pumpkin is considered a squash.

Pumpkins are generally orange and round and can be carved.

Squash come in all shapes, sizes, and colors.

Basically you can't eat gourds, but you can eat pumpkins and squash.

Lorissa