They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

Which alphabet letter is a question?

How can you take 2 from 5 and leave 4?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

There was a strange boy who was born before his father. How can this be possible?