1. Iron will rust if left outside, but what about gold? 2. Two people live in an alley, only a few steps apart. They work in the same factory, but when they go to work every day, one always turns to the left and the other to the left. Right, why? 3. In today’s society, what do most self-employed people who make a fortune rely on for their living? 4. What is Sleeping Beauty most afraid of? 5. Xiao Ming said to Xiao Hua: I can sit in a place where you can never sit! Where is he sitting? 6. No matter how similar twins look, someone will always tell them apart. Who is this person? 7. Which train is the longest in the world besides trains? 8. There is a person who only works one day a year and is not afraid of being caught. Who fired him? 9. Why doesn’t the egg rot when you hit it against a stone? 10. Which game is played backwards?