The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Can you write down eight eights so that they add up to one thousand?

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

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

I’m tall when I’m young, and I’m short when I’m old. What am I?

What four weights can be used to balance from 1 to 30 pounds?

What is the difference between a jeweller and a jailer?