Answer:
Can you think of a crime that is punishable if attempted but not punishable if actually committed?
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
What time of day, when written in capital letters, is the same forwards, backwards, and upside down?
Before Mount Everest was discovered, what was the highest mountain on Earth?
What hangs in the sky by day but at night goes away?
What language does a billboard speak?