There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Why do people go to bed?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

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?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

I have eight fingers and two thumbs but I do not live. What Am I?

How many triangles are there on the puzzle below?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

What can you catch but never throw?