Here are the answers based on the passage:

1. **What is the purpose of eating twelve grapes at midnight on New Year’s Eve in Spanish-speaking cultures?**
**A. To bring good fortune for the new year**

2. **In which countries is the new year tradition of cleaning the house practised?**
**C. Both A and B** (Mexico and Japan, and also Britian and Iran mentioned).

3. **What is the reason behind the Danish tradition of smashing old or broken plates on a friend’s front door?**
**B. To bring good luck to the friend**

4. **What is the significance of walking around the outside of the house with heavy luggage in Peru?**
**C. To be a successful traveller in the new year**

5. **What is the purpose of bringing flowers and herbs indoors during the spring-cleaning tradition in Iran?**
**A. To make the house smell fresh and clean**