Nope. Definitely not. Put it outside on your front porch immediately and I will be by to dispose of it properly.

If it was cooled and refrigerated promptly, absolutely. I have a three day rule for leftovers. Just make sure thoroughly heated

Are you asking if it's ok to eat today? Assuming it wasn't left sitting out and was refrigerated promptly after cooking I would think so.

Indian food from Saturday night? It's chicken tikka masala, if that matters.