Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

How many bananas can you eat if your stomach is empty?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes