Answer:
What can be opened but cannot be closed?
What food has no beginning, end, or middle?
There was a green house. Inside the green house there was a white house. Inside the white house there was a red house. Inside the red house there were lots of babies. What is it?
I'm a thick slice of beef or other high-quality meat or fish that is often cooked on a grill or fried.
This baked dish consists of an open-topped pastry case with a savory or sweet filling.
I stand in one place yet fill the whole room. I can be filled with molten rock and come in every hue. What am I?