Answer:
It belongs to you but you donβt use it. It does not belong to other people but they use it. What is it?
This is a plant named after a light source. What is it?
What is it that after you take away the whole, some still remains?
What goes up when rain comes down?
Before Mt. Everest was discovered as the highest mountain in the world, which mountain was the highest?
I am a room that has a roof but no walls. What am I?