Whisky Contest - HELP

I made a bet with my friend (with no taste buds) that he can not distingusish between a single malt and a blend. Therefore, I said I would serve him 3 glasses of whisky (where 2 of them would be a single malt and the other would be a blend (or vice versa)). In order for him to win, he would have to tell which one is not like the other and what it is. My question to you is: What 3 whiskys should I pick? It doesn't have to by scotch; any type will do. Obviously, i wish to pick whiskys that will confuse him. $50 bucks is on the line. Help!