In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Can you move 2 matchsticks to form four equal sized squares.

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?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Find the next number in the series.
1 10 24 43 67 ?

What do you think with the below Picture ?

Can you find a rabbit in the given picture?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?