I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

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

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

I drive at an average speed of 30 miles per hour to the railroad station each morning and catch my train. On a particular morning, there was a lot of traffic and at the halfway point, I had averaged only 15 miles per hour. How fast must I drive for the rest of the way to catch my train?

Can you start the fire using two pieces of wood?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?