You have three cards in a hat. One is white on both sides, one is red on both sides, the third is white on one side and red on the other. You pull a card out of the hat and lay it down. The face is white. What are the chances that the other side of the card is also white?
Edit: to those who have marked this as a duplicate, I invite you to explain how it can be so when the answer in the "duplicate" is 1/2 while the answer here is 2/3different from this one.