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

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Which number should replace the question mark?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?