Add Yahoo as a preferred source to see more of our stories on Google. You know all those buttons on top of McDonald's drink lids? People assumed they pretty much cracked the code when it was revealed ...

You know all those buttons on top of McDonald's drink lids? People assumed they pretty much cracked the code when it was revealed that the round doodads indicate the type of soda inside, but it seems ...

While McDonald's is perhaps the best-known fast-food chain in the world, some of the restaurant's practices remain shrouded in secrecy. Take the plastic lids McDonald's uses to cover its drinks, which ...

McDonald’s fans have been completely thrown to learn what the purpose of those little buttons or bobbles on the fizzy drink lids are actually for. And no they aren’t just for fiddling with while you ...

You know all those buttons on top of McDonald's drink lids? People assumed they pretty much cracked the code when it was revealed that the round doodads indicate the type of soda inside, but it seems ...