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

What building has the most stories?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

How can you tell a raw egg from a hard-boiled egg?

What number should come in place of the question mark below?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

What is black when you buy it, red when you use it, and gray when you throw it away?

What work can one never finish?

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?