For the next few months I place an object in a themed box and the children ask complete YES/NO questions to figure out as a group what is inside. If they guess correctly they all get what is inside!
This is a very challenging task and involves several skills. To be successful they need to ask questions to eliminate or include categories of things. Then make smart guesses based on clues to make the correct guess. For example, Is it something you can eat? will either eliminate all edibles or include edible items in their guess. They need to look over the yes/no clues before asking as well to figure out . Some children will ask Is it a mummy? not attending to clues or will ask an opinion Is it scary? which is a maybe answer.
They enjoy this game.