What building has the most stories?

What has many keys but can’t open a single door?

What kind of dog never bites?

What goes up when the rain comes down?

What is the smallest room in the world? (hint: word that ends with "room")

A boy is walking down the road with 3 people in his family. One of them is a doctor. While the boy is the doctor’s son, the doctor is not the boy’s father. Then who is the doctor?

I have keys without key locks. I have space without rooms. You can enter but you cannot go outside.

What kind of band never plays music?

What has words but never speaks?

How many months have 28 days?

What can travel all around the world without leaving its corner?

If you're running a race and you pass the person in second place, what place are you in?

What has a head and a tail but no body?