yellow squash :P
Any hard-skinned, orange-fleshed squash works. A cheap one that can easily be substituted for pumpkin is butternut.
Pumpkin
Pumpkin
Pumpkin pie is made out of pumpkins and squash pie is made out of squash..
Cushaw ( a winter crook neck squash ) and Pumpkin.
Pumpkin?
Pumpkin.
no. because the squash is the vegetable
butternut squash
No, pumpkin pie is much more common that squash pie. The reason may or may not be related, but since I've made both, I can tell you the a butternut or acorn squash (the kind used for making pie) is far tougher to prepare than a pumpkin. A butter nut or acorn squash is quite delicious baked and eaten right out of it's own shell, while a pumpkin isn't quite as tasty on its own.
Other than squash, a large member of the squash family is a pumpkin. Pumpkins are used to make things like pumpkin pie or jack o lanterns.