Answer:
I have keys but no locks. I have space but no room. You can enter but can't go outside. What am I?
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
I can speak with my hard metal tongue. But I cannot breathe for I have no lung
I am a room that has a roof but no walls. What am I?
I am a rock group with four members all of whom died in plane crashes. Who am I?
When is it bad luck to see a black cat?