What goes up but never comes down?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

There was a strange boy who was born before his father. How can this be possible?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

No matter how little or how much you use me, you change me every month. What am I?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?