Tweet it at using the hashtag #AskGreg or.Well, this is your chance to find out the truth! Just scribble your mind-twister down and. Have you got a question that's always bugged you? Ever wanted to settle once and for all that classic argument about whether you should put your milk in first or last when making a cuppa? Or maybe discover why we can't tickle ourselves? Or see if science has got any secrets to rid you of your stinking hangover? I am so excited that you finally get to see it! Only two days to go until Secrets Of Everything kicks off on BBC Three with a double bill on Sunday at 8pm.
