Kids and parents have a separate decks of 20 cards with 4 questions on each card and 1 extra trap-card.
The decks are named "Kids ask parents" and "Parents ask Kids" and both contains questions designed to match with knowledge of each side of duel.
One side draws a card from opponents deck, picks a question and chooses 1 of 3 given answers. After good answer the card is given and 1 point is awarded.
In case of drawing a trap-card you loose your turn and a chance to answer a question.
Then other side can draw a card.
After 5 rounds a side with more points wins.