When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

What breaks yet never falls, and what falls yet never breaks?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

When it's bad luck to meet a black cat?

Count the number of balls in picture below:

Can you count the number of squares in the given picture?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?