Here are some of the most common questions about house plants:

1. How often should I water my houseplants?
2. How much light do my houseplants need?
3. What type of soil is best for my houseplants?
4. How often should I fertilize my houseplants?
5. How can I tell if my houseplant is getting too much or too little water?
6. How do I revive a dying houseplant?
7. What are the best houseplants for low light conditions?
8. What are the best houseplants for purifying the air?
9. How can I prevent pests and diseases from affecting my houseplants?
10. How do I properly repot my houseplants?

These are some of the most common questions about houseplants, but there are many others as well. If you're new to indoor gardening, it's a good idea to do some research and educate yourself on the specific needs of your plants, as well as common problems and how to address them.