Do you remember when you were a child playing with picture blocks? A set of 12 or 20 cubes with part of six different pictures on each face. You could arrange them in a three by four or four by five rectangle to make each of the six pictures.
We saw a child playing with a set which had only four cubes which made six four by four pictures. She was throwing the blocks at random into their box, and suddenly gave a cry of delight - a picture had formed all by itself!
We immediately thought "What are the odds of that happening?", and of course we set about working it out.
So what are the odds of a picture appearing by chance? It does not matter which of the six pictures appears, and the picture can be any way up.
As usual you can post your suggested answers as a comment on this website, reply to the post on Facebook, or retweet or reply on Twitter @quizmastershop.
Answer at 9.00 on Monday