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

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

Can you make four (4) nines (9) equal 100?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

What has lots of eyes, but can’t see?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

I know a nine-letter word having only one vowel.
Do you ?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

Which is Odd One Out and why?

4377

3954

9862

8454

9831