Lots of questions on different subjects where you have to try to answer the latest question and if you are right then its your turn to ask the next question.
You would need one of these to decide who was fastest if on a quiz show for example....................... :wink: Also sounds a bit like someone we know!
Which hormone, produced in the kidney, stimulates production of red blood cells and is banned as a performance enhancing drug in most sports? It is best known by a 3 letter abbreviation of its full name.