Some are in the club, some are not. Work out the secret rule and judge five more at the door. A new club every day.
Of 100 people in the world, how many…? Press and hold to guess, then see the real number with its source.
One animal and three others: which is its closest relative? Pick one and watch the family tree draw itself.
A real moment from history and three choices. Make your call, then see what the leader actually did. One moment a day.
One real food or drink a day. Fill a plate or pour glasses of another until it holds the same energy, then see the real amount, from two official food tables.
One real animal: drag to set how fast you think its heart beats, then see the real heart beat beside yours.