Answer:
Tomorrow's yesterday. Yesterday's tomorrow. What is it?
Doing this with your job can be risky but doing it with smoking is always a good idea
What can you keep after giving it to someone?
Before Mt. Everest was discovered as the highest mountain in the world, which mountain was the highest?
What has only two words, but thousands of letters?
I am a room that has a roof but no walls. What am I?