What comes down but never goes up?

What goes up but never comes down?

Mr. Blue lives in the blue house, Mr. Pink lives in the pink house, and Mr. Brown lives in the brown house. Who lives in the white house?

They come out at night without being called, and are lost in the day without being stolen. What are they?

Which month has 28 days?

If
an electric train is travelling south, which way is the smoke going?

What is so delicate that saying its name breaks it?

I’m tall when I’m young and I’m short when I’m old. What am I?

How can a pants pocket be empty and still have something in it?

A dad and his son were riding their bikes and crashed. Two ambulances came and took them to different hospitals. The man’s son was in the operating room and the doctor said, “I can’t operate on you. You’re my son.”
How is that possible?

What word becomes shorter when you add two letters to it?

What travels around the world but stays in one spot?

What is at the end of a rainbow?