Answer:
What is at the end of a rainbow?
It is a popular afterlife destination where you want to send people when you're mad at them.
What hatches without food?
What is it that no man ever saw, which never was, but always will be?
What object has keys that open no locks, space but no room, and you can enter but not go in?
What is big and yellow and comes in the morning, to brighten mom's day?