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

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

Which word does the below Plexor means ?

The more you take me, the more you leave me behind.
Who Am I?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

What is the fastest way to double your money?

Can you find the thief by just looking at the picture below?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

If 21x = 79x, what is the value of x?

A sundial has the fewest moving parts of any timepiece. Which has the most?