You need to move three matchsticks to form three squares. Can you do it?

Why is it very easy to weigh a fish?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

What question can you never answer yes to?

The more it dries, the wetter it becomes. Can you tell what it is?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

What building has the most stories?