The players must solve a series of riddles arranged on individual cards.
The youngest player starts, one of the players took one of the cards, show it to the player in turn and immediately turn the sandglass.
If the player solve the riddle before time has expired shall place the card on his personal board, if the player do not solve correctly the card is placed in the bottom of the deck.
The game ends when one of the players solve six riddles.
Simple and easy.